Re: 260GTX nvidia-drivers-190.42-r3 - powermizer issue
Do you have the cuda 3.0 sdk installed? If so, what's the performance of the FDTD3D example? It reports MPoints/sec near the end. My gtx260m also reports what looks like the correct clock speed in nvidia-settings, but benchmarks are still slow.
Otherwise, some othe suitable benchmark would be a quick way to see if we're working.