When one enables desktop effects in KDE then screen isn't refreshed. The cursor is moving but the rest of the screen doesn't change. When desktop effects are disabled the screen is normally refreshed.
I have GeForce 7300 LE and i am using 280.13 drivers. My KDE version is 4.6.5. X Server - x.org 1.10.3
The problem is reproducible always.
I was able to test, on different computers that other NVidia GPU's doesn't have the problem.
The problems was introduced in drivers 270.x.
I decided to make a new thread about the problem to make it clearly visible, that it hasn't been resolved in latest drivers version. Old thread is: