GPL - Opengl patch , Diamond Viper 550 , TNT , another hint

I've been tearing my hair out trying to get GPL to recognise the opengl capabilities of my Diamond Viper TNT card. I came across this tech help from Microsoft [link lost in import] esstential it says you need another DLL file (glu32.dll) if your windows 95 is not the OEM version. All the best Speed