NVidia_Support

Hi, Suse7.2 with XFree86_4.1 suppose to support Nvidia cards, but I am having a problem running it. I have a Senergy_2000 (Nvidia) card, and I can't get 3D support work right. My monitor ( NEC_FE950) can handle 1600x1200 resolution , but using SaX2 I can only get 1280x1024. Also, when I tested with " /usr/bin/gears" it gives me very low speed with CPU = Pentuim_iV (1.5G). Does any one knows what I might did wrong? Thanks