I have one Vista Business x64 system here that has problems copying files to one particular Windows 2000 Server file server. The transfer speed is horrible (k/sec instead of meg/sec) when this station copies files TO the server, but copying FROM the server runs at full speed. This symptom persists consistently. No one else has a problem copying to/from this server, and this station has no problem copying to/from any other server. Further, the symptom persists whether copying from the C: drive or from a network drive. And to top it all off, if I log onto the server console and browse the Vista computer, I can copy files from Vista to 2000 at full speed. Frankly, I don't even know where to start with this one. The Vista system is not running SP1.