Comment 5 for bug 287998

A thought that arises from your comment, Neil - it most likely isn't an on-the-fly resize event causing this. It happens when I log on using an external screen, and the screen size is set to 1280x1024 when the nvidia driver starts up for GDM.

However, I have just tested to see what happens when the screen IS resized on the fly, by using the nvidia-settings applet. The result is that everything is fine when switching to 1024x768 on the internal screen OR the external screen, and it gets messed up again when switching on the fly to 1280x1024 on the external screen (the internal screen can't go that high).