Oh. Yeah that would make sense.
All the more reason then to inform us how much RAM is on his server. I would have to guess more than 2GB if he is running that on his workstations.
Of course, if rebooting the server fixes it, then it would have nothing to do with his client's RAM. But, I would suggest upgrading from 512MBs to at least a GB on all the computers if the motherboard will allow it. XP Pro takes up nearly that on its own, and I don't even know if Vista will run on 512.
