Voodoo 2 and D3D problem

[mitrovskiigi]

I have Siemens Nixdorf 15" monitor. Problem is that that this monitor have a litle bit dark picture and games are very dark so I can't see almost anything. Another problem is that drivers don't listen my commands about Gamma corection in D3D mode. It works for Glide!
How can i fix that. I tried certain tweakers but nothing.
Help please!!!