update manager gives me an error on 11.04

[jesus crespo]

Binary package hint: update-manager

Okay every time I try to run the update manager on 11.04 I get an error like this one

'E:Encountered a section with no Package: header, E:Problem with MergeList /var/lib/apt/lists/us.archive.ubuntu.com_ubuntu_dists_natty_main_binary-amd64_Packages,
E:The package lists or status file could not be parsed or opened.'

Then I only get the option to close the update manager. This is keeping me from updating any of my software and get any bug fixes that the updates might have. Example my web browser asking to be set as the default browser every time I open the browser with the unity interface. Now I don't know if a fix for that has come out or not but its just an example.

[RedSingularity (redsingularity)]

Run the following and see if it clears the problem:

sudo rm /var/lib/apt/lists/us.archive.ubuntu.com_ubuntu_dists_natty_main_binary-amd64_Packages