Welcome to the board, Brandanus!!!
Sounds very much like the Win2K town bug - the solution works for other OS that result in the same problem. Check Saz' techie help desk thread (I just bumped it up for Dark Savant) and you should find the solution there. If not, post to Saz' thread and the techie gurus will lend a hand! Just remember to tell us as much about your machine as possible!
Wyv