Update: using nVidia's proprietary driver (nvidia-glx package) "fixes" the problem. Strangely enough, the only affected application is firefox...
I've also tested Mozilla's "official" firefox2 release and it also has the same problem.
Update: using nVidia's proprietary driver (nvidia-glx package) "fixes" the problem. Strangely enough, the only affected application is firefox...
I've also tested Mozilla's "official" firefox2 release and it also has the same problem.