I've noticed this happening more with QT3/4 (KDE) applications, but on occasions I have a problem with Firefox not refreshing web pages or refreshing text boxes (particularly annoying when you are editing a Wikipedia article and you don't know where you are).
$ lspci -n |grep 300
01:00.0 0300: 10de:0611 (rev a2)
$ lspci | grep VGA
01:00.0 VGA compatible controller: nVidia Corporation GeForce 8800 GT (rev a2)
I've noticed this happening more with QT3/4 (KDE) applications, but on occasions I have a problem with Firefox not refreshing web pages or refreshing text boxes (particularly annoying when you are editing a Wikipedia article and you don't know where you are).
Currently using 177.80 drivers with Compiz 0.7.8.