GAINWARD Geforce 3 on intc 815ep MB

P3 1.0 Ghz. CUSL2-c MB GAINWARD Geforce 3… ok i have the drivers installed…expert tool says i have open gl drivers… but when i load tribes 2 or Unreal tourny they both say my only video driver availible is D3D… HOW OHH HOW DO I GET THE GAMES TO DETECT MY OPEN GL???