According to Microsoft article Q271518 titled,
"Error Message Loading Profile If You Log On to Windows 2000 and Windows NT Clients with the Same Roaming Profile"
SYMPTOMS
When you use roaming profiles and you log on to both Windows 2000-based and Microsoft Windows NT 4.0-based clients, the roaming profile may include the Ntuser.pol file. This file may have a .tmp extension added to the file name (for example, Ntuser.pol.tmp). This may occur more than once, which causes the file name to become very long.
CAUSE
This file is created by Windows 2000 with system and hidden attributes. Windows NT 4.0 adds a .tmp extension to the file name because it is not expecting these attributes.
RESOLUTION
Window NT 4.0
A supported fixis now available from Microsoft, but it is only intended to correct the problem described in this article and should be applied only to systems experiencing this specific problem.
To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:
http://support.microsoft.com/directory/overview.asp
NOTE: In special cases, charges that are normally incurred for support calls may be canceled, if a Microsoft Support Professional determines that a specific update will resolve your problem. Normal support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
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See this link for the entire article and related links:
http://support.microsoft.com/directory/article.asp?ID=KB;EN-US;Q271518
(REMOVE SPACES from the pasted URLs.)
Maxwell
