When she bought the machine, it would not boot. I assume somebody had
picked up a virus somewhere. I ran KillDisk and wiped it clean, and
then installed a copy of Win98 I had bought 14 hours later, the
install was finished. It runs and everything, but runs with so much
lag, I knew something was wrong.

Thanks for all the suggestions guys. You confirmed my hunch.
According to MS minimum HW requirements, it should run fine, but it
runs terrible. Tomorrow I will crack the case open and give it a good
cleaning and check all the cables. Thanks again!