Logon script on NT4 Serv not always runs

I have several WIn95/98 clients who login to an NT4 Server, and the login.bat script defined in the user manager for domains in the Netlogon share does not always run when logging in. I have noticed that this is usually when doing a logon/logoff with out restarting. Doing a full shut down or restart usually activates the logon.bat when logging on.

Any help appreciated and 150 points to be best answer.. in the meanwhile I will go to some users an manually remap their drives (the ones in the logon script).