Hmm.. I remember getting an error message in vlc after an update that was very similar to the one from firefox 'BadAlloc (insufficient resources for operation)', that turned out to be a problem with the shared memory extension in xorg, which is also what opera is complaining about.
If noone has any better ideas I would try disabling the extension in xorg.conf. > Section "Extensions" > Option "MIT-SHM" "no" > EndSection For the record, I've also updated xorg-server (1.4.0.90-6), and firefox runs with the extension on or off. - David
