CAN anyone tell me how to now?

Several days ago,i format my drive C and install winXP instead of WinMe.but I forgot
that the OpenGl i got was only for WinME!So,now my Cs and Maohh can’t to be played!! What a nightmare! Can someone tellme how to do now?Please!

In case you have a Nvidia 3d card download the XP driver from, if you got an ATI card go to