Comment 3 for bug 828850

Can also work around it with <TAB> -- always seems to occur after a failed repository warning has appeared on screen, the process to make it crash (for me) is:

* Run Update Manager
* Update Manager warns that "Failed to download repository information / Check your Internet connection." (in my case, from a non-oneiric PPA repository)
* Click Settings / Other Software
* Attempt To Unselect Failed Repository = Crash

This is on a Beta 2 Oneiric Install updated to 26-09-2011