Driver problems when playing videos

[John Rambo]

Matrox gamma options don`t work with WINDOWS MEDIA PLAYER ver.6.4.05.0809 and all movies (mpeg,avi..) being played with WINDOWS MEDIA PLAYER are shown extremly dark. When I turn off the hardware acceleration in windows media player, gamma starts working but video is not played in correct full screen resolution. Is this a known problem of matrox drivers or windows media player?

G400DH32MB,drivers PD5.41,monitor AOC5Glr and gamma works correctly in Direct3D, OpenGl or desktop.

best regards
John Rambo