I have installed Client 4.91SP2 to a new Dell WinXPSP2 workstation, but
the Novell login screen does not appear at startup. When the system boots
up the user is presented with a Windows XP login screen. After logging in
to Windows the user is prompted (bizzarely) with a bindery only Novell
login screen.

The user can cancel out of this and then right click on My Network
Places>Novell Login and do a regular eDirectory login without any problem.

I have tried uninstalling and reinstalling the client a few times but it
keeps doing the same thing.

The client for Microsoft networks is not installed and the XP box is not
part of a domain.

Any thoughts on this?