A memory leak may result in user profiles being lost.
If Windows does not load the current user profile (local or remote) because of a low-memory condition, Windows issues a new default profile and the existing profile is lost.
To resolve this problem, obtain the latest service pack for Windows NT Server version 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the
Microsoft Knowledge Base:
How to Obtain the Latest Windows NT 4.0 Service Pack
This problem was first corrected in Windows NT Server version 4.0, Terminal Server Edition Service Pack 6.