Same problem with me on Win XP Pro. 99% CPU utilization continually. It will lock up and have to be closed only by the end process function after several hours. It still seems to be downloading fine but accessing the screen is impossible once it locks up. I have fiddled with lowering the priority of the process after the program is started and that seems to let the other programs on the system run better but it still locks up after a while. And when I say locks up I mean Xolox not XP. The Task Manager is always able to successfully end the process. I love the NT Kernal.

Chaz