I'm running Windows XP Pro SP2 on a Compaq Presario and sometime during the last month all unused drives letters are becoming mapped to one of my network drives. I remove the mappings but at some point in time they all become mapped again (there is even one mapped to no drive letter, the drive letter shows up as "none" when I go to the disconnect window). I've not been able to find a reason for this. I've run Spybot, Adaware and Avast and found no problems. The only new thing that I put on was System Mechanic 7 and it seems to be after that that is started happening. I've turned off the ActivCare feature thinking this might be causing it but I'm still seeing the drives get re-mapped. I just noticed that System Mechanic performed a deep scan an hour ago (I've been gone about 5 hours) so perhaps the deep scan is doing it, I will check that and report back. But I did want to post this in case anyone else has seen this and either has a solution or is looking for one. UPDATE: Defiantly System Mechanic. I will contact the manufacturer for a solution.