resolution help

Hello, I just installed suse 9.0 I have an nvidia riva tnt2 64 My system is running right now in 1280x1024 16bit ...and I'm using the nvidia driver. My question is...how can I get it to run higher than 16bit. It drops down to 1024x768 if I go higher than 16bit. When I installed mandrake...I had to use xfree86 version 3 with the svga driver and I got 32bit 1280x1024. This is what I want with suse but I never saw an option to choose what version of xfree86 to install. What can I do about this?