commandline options for afscreds.exe

Hello list,

I´m looking for the commandline options for afscreds.exe.

My Problem:
We have two Win 2003 terminalserver with roaming Profiles. If a user 
logs in at Server A, maps an Afs-drive and logs of and then logs in at 
Server B, he can not access the mapped drive. As we know, the 
information in the registry show the name of Server A! If I use the 
AFS-GUI - Drive Letters and unmount the drive and mount it again the 
user has access to the drive. In the registry the servername has changed 
to Server B.

I want to do this now at the login of the user with a script. I have 
found the command to unmount all mapped afs-drive  -  afscreds.exe -Z.
Now the question:
How do I mount all defined drives under "Drive Letters"? I already tried 
the options defined in the shortcut at autostart 
(N:\Programme\IBM\AFS\Client\Program\afscreds.exe -A -M -N -Q) but with 
no result.

Thanks.
Thomas