I have a Windows 2003 server (not SBS) and 10 winXP pro machines accessing it. After 3 years of working fine, I have one machine that takes a very long time to log in (5-10 times as long as other machines) and then cannot access any network share. I can access the internet (direct from hub to modem) and MS Exchange Server (on the same machine as the shares), but not any share. Sometimes I get a “No Domain controller available message). When I move the PC to another location, i get the same problem, and when I put a machine in this location, i do not have a problem. Happens regardless of who is logged on. I have rebuilt the machine to no avail.