Need computer help!

One more indulgence, if I may, directed at 67dart273-

Being able to repair a thinkpad actually got me a promotion at work (or maybe even my job) (post IBM).
After being there for about 9 months (and running out my "temp" time), our CIO comes into the electronics/computer shop with his IBM Think pad, tosses it on the desk in front of a group of 2-15+ year full time employees, and says "this isn't working, and I need it tomorrow", then leaves.
NO ONE could fix it!
I don't remember exactly what I did, but poking around in that god awful reference diskette (which I just happened to have) allowed me to reset/rescan something, and sure enough it worked, and I ("the temp") was able to get it back to him before the end of the day.