Mandrake Linux 8.1, default window manager

[Don_HH2K]

I'm in the process of (per order of school faculty, of course) installing Mandrake Linux 8.1 on some older PCs at school that can't run Windows 2000 or XP. On one machine, I accidentally forgot to install the KDE workstation environment. I can still boot GNOME, so I went into Control Center and added the approproate KDE packages. The only problem is that when I boot, I get the GNOME logon screen, with no option to boot KDE as the default. Does anybody know how I can set KDE as the default?

UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.8) Gecko/20050511 Donzilla/0.7PR2 (WML/1.3; WML/1.2; WML/1.1; WML/1.0)