I only once had a problem with a box that was up for a long period of time. I was not in a position to really check into the problem as the box had one one message on the screen and that was it was out of memory. I could only contribute this to having an iso image mounted for several weeks. Now why this was a problem I don't know, but I couldn't do anything to unmount or run any other programs so I was forced to reboot. It was rather interesting however and I've never left an iso imagine of any size mounted for that long. Scott