Domain user can't connect to server

I have one stand out user who can't connect to one somewhat newly added 2003 file server on the network to any share.  All other servers - no problem.  She gets an "Access denied, you may not have permissions, check with your network admin" message.  I have removed and readded her permissions repeatedly to no avail.  Not sure if this is related but I also noticed that her logon to other domain resources must be the "domainname\username@domainname" format rather than just the plain old user name like everyone else.  I do also recall having to jump through hoops with her machine to get it to stop roaming profiles so this may have had something to do with the problem also.  What should I do and check?  Thanks.
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KeithRetired IT ProCommented:
This sounds a little like a problem that drove me nuts once for a long time, until I removed the TCP/IP stack and reinstalled it.  Problem went away and stayed away.

The only symptom I had was the FQDN would not show up with a ipconfig, and it didn't like the DNS server.  Try it, might work...

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Windows Server 2003

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