[dtmmax33]

I worked tech support for a large desktop line. This was around 96 and pentium 133 days. We had a large batch of HD's that would fail. Funny thing is, a nice slap on the side of the tower would get them working again. Many times the customer would be satisfied with the solution, but I had to keep them on the line so I could get them a replacement. Can't remember which manufacture the HD's were, but rumor was that a truck broke down in the desert and it degraded the grease inside. So, they would work for a while but then lock up if drive stayed off for a while.