[sambo57u]

I think I found a solution to ctrl+alt+Fn problems:

If you are using KDM, edit your kdmrc file (usually in /etc/X11/xdm)
and insert the line:

TerminateServer=true

In all the blocks that contain -Core in their heading.

If you are using GDM try editing gdm.conf and put in the line:

AlwaysRestartServer=true

Hope this helps!
Sammy