hay Dave: Thank you very much.... can u pls solve one more problem.... pandu@Pavan-Satellite-C640:~$ sudo apt-get update[sudo] password for pandu: Ign http://dl.google.com stable InRelease Hit http://dl.google.com stable Release.gpg Ign http://ppa.launchpad.net raring InRelease Ign http://archive.canonical.com raring InRelease Ign http://in.archive.ubuntu.com raring InRelease Hit http://dl.google.com stable Release Ign http://extras.ubuntu.com raring InRelease Ign http://ppa.launchpad.net quantal InRelease Hit http://archive.canonical.com raring Release.gpg Ign http://in.archive.ubuntu.com raring-updates InRelease Hit http://extras.ubuntu.com raring Release.gpg Hit http://dl.google.com stable/main i386 Packages Ign http://ppa.launchpad.net raring InRelease Hit http://archive.canonical.com raring Release Ign http://in.archive.ubuntu.com raring-backports InRelease Hit http://extras.ubuntu.com raring Release Ign http://ppa.launchpad.net quantal InRelease Ign http://in.archive.ubuntu.com raring-security InRelease Hit http://archive.canonical.com raring/partner Sources Hit http://extras.ubuntu.com raring/main Sources Ign http://ppa.launchpad.net quantal InRelease Ign http://in.archive.ubuntu.com raring-proposed InRelease Hit http://archive.canonical.com raring/partner i386 Packages Hit http://extras.ubuntu.com raring/main i386 Packages Ign http://ppa.launchpad.net quantal InRelease Get:1 http://in.archive.ubuntu.com raring Release.gpg [933 B] Ign http://ppa.launchpad.net quantal InRelease Hit http://in.archive.ubuntu.com raring-updates Release.gpg Ign http://ppa.launchpad.net quantal InRelease Hit http://in.archive.ubuntu.com raring-backports Release.gpg Ign http://dl.google.com stable/main Translation-en_US Ign http://ppa.launchpad.net raring InRelease Hit http://in.archive.ubuntu.com raring-security Release.gpg Ign http://dl.google.com stable/main Translation-en Ign http://ppa.launchpad.net quantal InRelease Get:2 http://in.archive.ubuntu.com raring-proposed Release.gpg [933 B] Hit http://ppa.launchpad.net raring Release.gpg Get:3 http://in.archive.ubuntu.com raring Release [40.8 kB] Hit http://ppa.launchpad.net quantal Release.gpg Ign http://ppa.launchpad.net raring Release.gpg Ign http://archive.canonical.com raring/partner Translation-en_US Hit http://ppa.launchpad.net quantal Release.gpg Hit http://in.archive.ubuntu.com raring-updates Release Ign http://archive.canonical.com raring/partner Translation-en Ign http://extras.ubuntu.com raring/main Translation-en_US Hit http://ppa.launchpad.net quantal Release.gpg Hit http://in.archive.ubuntu.com raring-backports Release Hit http://ppa.launchpad.net quantal Release.gpg Ign http://extras.ubuntu.com raring/main Translation-en Hit http://in.archive.ubuntu.com raring-security Release Hit http://ppa.launchpad.net quantal Release.gpg Get:4 http://in.archive.ubuntu.com raring-proposed Release [40.8 kB] Hit http://ppa.launchpad.net quantal Release.gpg Get:5 http://in.archive.ubuntu.com raring/main Sources [884 kB] Hit http://ppa.launchpad.net raring Release.gpg Hit http://ppa.launchpad.net quantal Release.gpg Hit http://ppa.launchpad.net raring Release Hit http://ppa.launchpad.net quantal Release Ign http://ppa.launchpad.net raring Release Hit http://ppa.launchpad.net quantal Release Hit http://ppa.launchpad.net quantal Release Hit http://ppa.launchpad.net quantal Release Hit http://ppa.launchpad.net quantal Release Hit http://ppa.launchpad.net quantal Release Hit http://ppa.launchpad.net raring Release Hit http://ppa.launchpad.net quantal Release Hit http://ppa.launchpad.net raring/main Sources Hit http://ppa.launchpad.net raring/main i386 Packages Hit http://ppa.launchpad.net quantal/main Sources Hit http://ppa.launchpad.net quantal/main i386 Packages Get:6 http://in.archive.ubuntu.com raring/restricted Sources [6,868 B] Get:7 http://in.archive.ubuntu.com raring/universe Sources [5,677 kB] Hit http://ppa.launchpad.net quantal/main Sources Hit http://ppa.launchpad.net quantal/main i386 Packages Hit http://ppa.launchpad.net quantal/main Sources Hit http://ppa.launchpad.net quantal/main i386 Packages Hit http://ppa.launchpad.net quantal/main Sources Hit http://ppa.launchpad.net quantal/main i386 Packages Hit http://ppa.launchpad.net quantal/main Sources Hit http://ppa.launchpad.net quantal/main i386 Packages Hit http://ppa.launchpad.net quantal/main Sources Hit http://ppa.launchpad.net quantal/main i386 Packages Hit http://ppa.launchpad.net raring/main Sources Hit http://ppa.launchpad.net raring/main i386 Packages Hit http://ppa.launchpad.net quantal/main Sources Hit http://ppa.launchpad.net quantal/main i386 Packages Get:8 http://in.archive.ubuntu.com raring/multiverse Sources [167 kB] Get:9 http://in.archive.ubuntu.com raring/main i386 Packages [1,162 kB] Get:10 http://in.archive.ubuntu.com raring/restricted i386 Packages [9,892 B] Get:11 http://in.archive.ubuntu.com raring/universe i386 Packages [5,399 kB] Ign http://ppa.launchpad.net raring/main Translation-en_US Ign http://ppa.launchpad.net raring/main Translation-en Ign http://ppa.launchpad.net quantal/main Translation-en_US Ign http://ppa.launchpad.net quantal/main Translation-en Err http://ppa.launchpad.net raring/main Sources 404 Not Found Err http://ppa.launchpad.net raring/main i386 Packages 404 Not Found Ign http://ppa.launchpad.net raring/main Translation-en_US Ign http://ppa.launchpad.net raring/main Translation-en Ign http://ppa.launchpad.net quantal/main Translation-en_US Ign http://ppa.launchpad.net quantal/main Translation-en Ign http://ppa.launchpad.net quantal/main Translation-en_US Ign http://ppa.launchpad.net quantal/main Translation-en Ign http://ppa.launchpad.net quantal/main Translation-en_US Ign http://ppa.launchpad.net quantal/main Translation-en Ign http://ppa.launchpad.net quantal/main Translation-en_US Ign http://ppa.launchpad.net quantal/main Translation-en Ign http://ppa.launchpad.net quantal/main Translation-en_US Ign http://ppa.launchpad.net quantal/main Translation-en Ign http://ppa.launchpad.net raring/main Translation-en_US Ign http://ppa.launchpad.net raring/main Translation-en Ign http://ppa.launchpad.net quantal/main Translation-en_US Ign http://ppa.launchpad.net quantal/main Translation-en Get:12 http://in.archive.ubuntu.com raring/multiverse i386 Packages [132 kB] Hit http://in.archive.ubuntu.com raring/main Translation-en Hit http://in.archive.ubuntu.com raring/multiverse Translation-en Hit http://in.archive.ubuntu.com raring/restricted Translation-en Hit http://in.archive.ubuntu.com raring/universe Translation-en Hit http://in.archive.ubuntu.com raring-updates/main Sources Hit http://in.archive.ubuntu.com raring-updates/restricted Sources Hit http://in.archive.ubuntu.com raring-updates/universe Sources Hit http://in.archive.ubuntu.com raring-updates/multiverse Sources Hit http://in.archive.ubuntu.com raring-updates/main i386 Packages Hit http://in.archive.ubuntu.com raring-updates/restricted i386 Packages Hit http://in.archive.ubuntu.com raring-updates/universe i386 Packages Hit http://in.archive.ubuntu.com raring-updates/multiverse i386 Packages Hit http://in.archive.ubuntu.com raring-updates/main Translation-en Hit http://in.archive.ubuntu.com raring-updates/multiverse Translation-en Hit http://in.archive.ubuntu.com raring-updates/restricted Translation-en Hit http://in.archive.ubuntu.com raring-updates/universe Translation-en Hit http://in.archive.ubuntu.com raring-backports/main Sources Hit http://in.archive.ubuntu.com raring-backports/restricted Sources Hit http://in.archive.ubuntu.com raring-backports/universe Sources Hit http://in.archive.ubuntu.com raring-backports/multiverse Sources Hit http://in.archive.ubuntu.com raring-backports/main i386 Packages Hit http://in.archive.ubuntu.com raring-backports/restricted i386 Packages Hit http://in.archive.ubuntu.com raring-backports/universe i386 Packages Hit http://in.archive.ubuntu.com raring-backports/multiverse i386 Packages Hit http://in.archive.ubuntu.com raring-backports/main Translation-en Hit http://in.archive.ubuntu.com raring-backports/multiverse Translation-en Hit http://in.archive.ubuntu.com raring-backports/restricted Translation-en Hit http://in.archive.ubuntu.com raring-backports/universe Translation-en Hit http://in.archive.ubuntu.com raring-security/main Sources Hit http://in.archive.ubuntu.com raring-security/restricted Sources Hit http://in.archive.ubuntu.com raring-security/universe Sources Hit http://in.archive.ubuntu.com raring-security/multiverse Sources Hit http://in.archive.ubuntu.com raring-security/main i386 Packages Hit http://in.archive.ubuntu.com raring-security/restricted i386 Packages Hit http://in.archive.ubuntu.com raring-security/universe i386 Packages Hit http://in.archive.ubuntu.com raring-security/multiverse i386 Packages Hit http://in.archive.ubuntu.com raring-security/main Translation-en Hit http://in.archive.ubuntu.com raring-security/multiverse Translation-en Hit http://in.archive.ubuntu.com raring-security/restricted Translation-en Hit http://in.archive.ubuntu.com raring-security/universe Translation-en Get:13 http://in.archive.ubuntu.com raring-proposed/restricted i386 Packages [14 B] Get:14 http://in.archive.ubuntu.com raring-proposed/main i386 Packages [2,809 B] Get:15 http://in.archive.ubuntu.com raring-proposed/multiverse i386 Packages [2,610 B] Get:16 http://in.archive.ubuntu.com raring-proposed/universe i386 Packages [166 kB] Get:17 http://in.archive.ubuntu.com raring-proposed/main Translation-en [4,314 B] Hit http://in.archive.ubuntu.com raring-proposed/multiverse Translation-en Hit http://in.archive.ubuntu.com raring-proposed/restricted Translation-en Get:18 http://in.archive.ubuntu.com raring-proposed/universe Translation-en [78.7 kB] Ign http://in.archive.ubuntu.com raring/main Translation-en_US Ign http://in.archive.ubuntu.com raring/multiverse Translation-en_US Ign http://in.archive.ubuntu.com raring/restricted Translation-en_US Ign http://in.archive.ubuntu.com raring/universe Translation-en_US Ign http://in.archive.ubuntu.com raring-updates/main Translation-en_US Ign http://in.archive.ubuntu.com raring-updates/multiverse Translation-en_US Ign http://in.archive.ubuntu.com raring-updates/restricted Translation-en_US Ign http://in.archive.ubuntu.com raring-updates/universe Translation-en_US Ign http://in.archive.ubuntu.com raring-backports/main Translation-en_US Ign http://in.archive.ubuntu.com raring-backports/multiverse Translation-en_US Ign http://in.archive.ubuntu.com raring-backports/restricted Translation-en_US Ign http://in.archive.ubuntu.com raring-backports/universe Translation-en_US Ign http://in.archive.ubuntu.com raring-security/main Translation-en_US Ign http://in.archive.ubuntu.com raring-security/multiverse Translation-en_US Ign http://in.archive.ubuntu.com raring-security/restricted Translation-en_US Ign http://in.archive.ubuntu.com raring-security/universe Translation-en_US Ign http://in.archive.ubuntu.com raring-proposed/main Translation-en_US Ign http://in.archive.ubuntu.com raring-proposed/multiverse Translation-en_US Ign http://in.archive.ubuntu.com raring-proposed/restricted Translation-en_US Ign http://in.archive.ubuntu.com raring-proposed/universe Translation-en_US Fetched 13.8 MB in 2min 55s (78.3 kB/s) W: Failed to fetch http://ppa.launchpad.net/benkai/precise-unity-stable-branch/ubuntu/dists/raring/main/source/Sources 404 Not Found W: Failed to fetch http://ppa.launchpad.net/benkai/precise-unity-stable-branch/ubuntu/dists/raring/main/binary-i386/Packages 404 Not Found E: Some index files failed to download. They have been ignored, or old ones used instead. pandu@Pavan-Satellite-C640:~$