Help w/Novell Client

[Riptide]

We have been deploying Impravada single signon and on a few of workstations it has caused problems. If we remove Impravada then the XP workstation refuses to produce the Novell logon first - and henceforth comes up with the MS Client logon instead.

Is there a way to force XP to start bringing up Novell before the windows logon? It's easy in Windows 98SE but we haven't been able to figure it out with 2000 or XP. It was just a simple dropdown box in 98... Not so any more.