After installing SP1 on Win XP Prof, no drives are mounted anymore

[Fitschi]

Operating System: Windows XP Professional SP 1
Burning Software: Nero 6
Anti-virus Software: none
DAEMON Tools Version: 3.44

Hello,
everything went fine working with DaemonTools until now.
I installed the Windows XP SP1 on my Windows XP Prof. Edition and a few security updates, after that just my regular harddisks were show although DD was active. I uninstalled DD and downloaded the newest Version, installed, rebooted and still there are no drives. I can choose from 1 to 4, nothing happens, no drives are shown.
Also I canґt change the drive parameters ....

looking forward for help,
thx in advance,
Christian

[DevX]

Where are they NOT shown? If you set 1 virtulal drive in tray - can you see it reflected in the tray icon? After first install number if drives should be 1 automatically.