OK, I'm no guru but I can help you with a couple of things: 1) Yes, that's exactly what it does. 2) Possibly, probably not. Either your memory usage will stabilise at >1gig (unlikely) or it'll fill up the second gig at around the same rate as the first. We use a freeware collection called the PC Repair System here at work, and we've found it to be invaluable for troubleshooting stuff like this - as well as being a damn usefull load of utilities in its own right. You can get it from http://www.dailycupoftech.com/usb-drive-systems/3/.