Thanks for the pointers Emil. I have tried the NvForcePost=1 configuration with noaccel=1, it only resulted in the backlight being bumped to 100%. My screen was still meessed up. Doing the suspend/resume trick fixed it. Without noaccel I get a system crash too. It would be nice to get acceleration. Joanand, am I understanding it correctly that you could get your 9400 with accel? If so was that prior to 3.7 kernels?