The network is NT4, and the user has tried on XP and 2000 workstations with the same result, even with the basic "Hello World" script as kixtart.kix. The usermgr profile shows "Kix32" as the logon script, which is the same as all other users. The user is a member of Domain Admins as well. It's weird that it only bombs out on the initial login. Once it fails, if they call it %logonserver%\netlogon\kix32 it works fine.
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silence is golden, but duct tape is silver