Been doing the same thing to debug for the last 2 days to no avail until I found this post. You are a genius! How in the world...

The upgrade of Client tools did not resolve the issue.  Does any one know how SQL Server is able to authenticate me as a userid other than my Winnt login...

I just found that the server is running engine 8.00.818 but my client tools are at 8.00.194.  I am going to try to upgrade my client tools first and see...

We are running SQL Server 2000 with SP3 with the latest hotfix to 8.00.818.  None of the client machines have SQL Server 'server' installed, just the connectivity tools like EM,...

Thanks for these suggestions.  I've tried some of them but it doesn't resolve the issue.  Strange, strange, strange.  I don't know where it's coming from. 

I looked at the ipc$ and...

I also can use the debugger from the server that is running SQL 2000.  I can't get it to work properly when I use it back at my client desktop...