I got home and tried that suggestion, but CPU is still high. I disabled about as much stuff as I could find. As I'm running this on a Media Center PC, most of the things included (playing videos, picture viewer, etc) were redundant - I really only need the MAME capabilities. That said, the interface itself is wonderful - it looks like I never left Media Center, works with the controller, etc. And the details (game info, etc) are great. Just trying to get the CPU down on it is all. Thanks!