blank purple screen on startup, unable to boot with repeated USB disks. Dont know what to do!

[Shreenivas Iyer]

Binary package hint: nautilus

I recently upgraded from 10.10 Maverick to 11.04. Now the system restarts fine, but after logon, all I get is a full screen purple / violet window (same background that I used to get for 10.10), but this time with no icons nothing. I am actually handicapped. I can access file explorer only when I insert a USB drive and the explorer pop up. I can use internet as luckily I had configured previously so that the net is connected automatically. But I am unable to access terminal neither any other application on my netbook. Totally handicapped! I have a bootable USB, but each time I use it (I tried making diff isos on diff pen drives), it says Boot error. Pllssss help! I am unable to find my ext CD drive, else I could hv reinstalled Windows and thru Win isntalled Ubuntu back using the exe file on the iso

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: nautilus 1:2.32.2.1-0ubuntu13
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
NonfreeKernelModules: wl
Architecture: i386
Date: Wed May 11 08:03:55 2011
ExecutablePath: /usr/bin/nautilus
InstallationMedia: Ubuntu-Netbook 10.10 "Maverick Meerkat" - Release i386 (20101007)
ProcEnviron:
 LANGUAGE=en_IN:en
 PATH=(custom, user)
 LANG=en_IN
 LC_MESSAGES=en_IN.UTF-8
 SHELL=/bin/bash
SourcePackage: nautilus
UpgradeStatus: Upgraded to natty on 2011-05-10 (1 days ago)

[Sebastien Bacher (seb128)]

thank you for your bug report but that seems a support request rather than bug, you should use the answers tracker rather