Thanks for the replies thus far.

The poswer supply is an exact replacemtn, sec-wise: 19V @ 4.75 A (90
watt).

The hard drive was replaced with a newer, bigger hard drive and has a
fresh install of WinXP SP3, with patches. I'm also running Pop-Up Cop
to help with spyware, but I hadn't visited any other sites than
Microsoft's Adobe's and Apple's (still installing players, et cetera).

I found a SpeedStep monitor/control program, but it will only show the
full-out speed (1.993 GHz) of the CPU. I'm guessing the machine has a
desktop processor in it--when I removed the heatsink to clean it and
re-grease the CPU with Artic Silver, it looked like a desktop CPU.

The mystery deepens...if I only had a schematic.
** To respond, remove the crap from my addy... **