Suse 9.3, nVidia and laptop

Hi, I have just installed suse 9.3 on my laptop with a GeForce graphics board. However if I attempt to start X using the nVidia drivers, the computers monitor turns off and the computer freezes. I would greatly apperciate any help pn this. This is the only suse version this has happend with, but it has happend with other distributions. Thanks in advance. Mads Hansen