I also had a look at my xorg.conf, but it is almost empty.
The /var/log/xorg.0.log contains no relevant errors (WW or EE entries).
However I just noticed that I do not seem to have this problem on my old Pentium 4 with its 32 bits Ubuntu Intrepid and a nvidia 6600, whereas on my dell m1330 with a 64 bits install and a nvidia 8400, I experience the problem.
I tried to install them both the same way (I have done the update to Intrepid the same way also), and I use gnome with some kde4/qt4 apps on the two.
I am running on a single head system :-(
I also had a look at my xorg.conf, but it is almost empty.
The /var/log/xorg.0.log contains no relevant errors (WW or EE entries).
However I just noticed that I do not seem to have this problem on my old Pentium 4 with its 32 bits Ubuntu Intrepid and a nvidia 6600, whereas on my dell m1330 with a 64 bits install and a nvidia 8400, I experience the problem.
I tried to install them both the same way (I have done the update to Intrepid the same way also), and I use gnome with some kde4/qt4 apps on the two.