>>At our user group session last night, Doug Carpenter described that exact same problem. On one scenario that he mentioned he didn't have any problems login as user XYZ but he had problems loging as user ABC on the same machine!!!
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>Was he the server or the client, or both in this example? Windows 2000? It may have something to do with the SOAP toolkit not being registered properly per user, ect.
He was acting like the client. The computer he was using had Windows 2000 and it is connected to our LAN.

The funny behavior is that if he logged to one domain then everything worked fine, however if he logged to another domain (from within the same workstation) then it stops working.