Thank you both for all the help. The condition changed when I updated the display drivers, but it still didn't work correctly. Motherboard BIOS upgrade and it seems to be right. I sure wish there was some way to actually see what was going on in log files. I'd settle for knowing what the MS updates actually change. I think one of the Windows XP updates was conflicting with the BIOS power management, but this is pretty much a guess. It seems "fixed" now. Thanks again!

Jim