Taking Screenshots in OpenGL Games

Is anyone else having a problem taking screenshots with OpenGL games?? I mean whenever I try, they come out way too dark. However, when i take pix from DirctX games, they come out fine

Athlon 1.4 GHz
Visiontek GF3 TI-500
Nvidia 28.32 drivers
MSI KT266 PRO II - latest BIOS
Fresh XP Pro install

This happens in mutiple games (SOF II, Jedi II)

Tnx es 73


Both those games you mention are Quake3-based games, perhaps that has something to do with it. Otherwise, I dunno.