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My 12.04 install sometimes does this to the text on the screen:

enter image description here

enter image description here

This happens on all text in nautilus, all context menus, bookmarks/omnibox/statusbar on Chrome, and elsewhere in other programs. I've never had it happen to me after a clean boot, but it does sometimes happen after I boot from a hibernated OS.

I had recently installed Gnome Shell 3(unstable), but I removed it later, and this problem started then.

How ought I fix this?

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You might have some of Gnome left over. Have you tried anything? – Seth Feb 10 '13 at 21:55
@Seth: I ran the normal aptget purge/uninstall. That's it, I guess. – Manishearth Feb 11 '13 at 5:17
Please run "sudo apt-get autoremove" and remove any packages it finds. – Seth Feb 11 '13 at 14:23
@Seth: That's also been done, repeatedly. I clear out the cache periodically. – Manishearth Feb 11 '13 at 14:24

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