FC4T3 hangs during boot at installation

["HGM.bg \(GMX\)" <vdr.hgm.bg@xxxxxxx>]

Hi,

I have a running FC2 system and tried to boot FC4T3 DVD. During the
first boot of the system, the boot process stops with

Greetings.
Input: AT Translated Set 2 keyboard on isa0060/serio0

I allready detached the serial mouse and tried several boot-parameter
but no-go

Any hints ?

/hgm.bg