I am switching all my workstations over from Windows 2000 Pro to Windows XP Pro. I am having a problem after I switch them over with Excel (Office XP) giving users a "Disk Full" message when they attempt to save back to the Windows 2000 Server. If they click OK and try again it will usaully work after the 2nd or 3rd attempt. They did not receive this error when they were running Office XP on the Windows 2000 systems. However, I do have 1 user (out of about 20) who is still on Windows 2000 who receives the error in Word. The network is fairly simple with a fileserver, an Exchange Server and a ISA Server. The fileserver is the server they are saving too and it has about 17gb of space left. I am planning on adding more drives to the existing raid, but I am sure that is not the problem. Thanks in adavance for any assistance.