I just upgraded my system processor form wee Celeron 1500 to nice and new Intel Core 2 Quad Q9400. Mildly overclocked it to 3GHz and I starded folding on it. Here's the problem. My folding client (6.23 System tray client with viewer on Windows 7 Ultimate 64-bit) won't use more than 25% of CPUs power, thus it returnes only about 500PPD. Tried uninstalling the client and reinstaling again, but it keeps remembering all old settings. CPU usage is set to 100% which is just not happening. Very frustrating. Anybody can help?