PCMark05 hangs when I start the program. Any advice?

[jo4re]

PCMark05 program starts but hangs on the "acquiring system info" screen. The rest of my PC is useless and requires a reboot. The mouse still works but none of the icons work and I can't shut it off in task manager either.

I score 7600 with 3DMark though.......

Any ideas?

Thanks,
Joe