Hugo,

I believe the proper thing for you to do is to offer to ship jfranke's empeg unit at your cost back to your development offices, replicate the contents of the hard drive and send him a replacement asap. If jfranke's unit can replicate the problem so readily, I think it will be in everyone's best interests for you to get a hold of his unit so you can expedite the solution. That way, jfranke will get a unit where the problem is "difficult to replicate" and you have a unit where it happens 3 times a weekend and everyone is happy.

Calvin