Running ZFD 6.5 zdm65sp2ir1.

Fujitsu Simens S6410
Botting PXE selecting mantenence mode.
After starting kernel mode (v0.97) with parameters from Z_auto.cmd.
The display goes black, no information pressent.(ALT+F1-F4 is not working.)
Only power off or CTRL+ALt+DEL i possible.

How can i debug this ?

Regard Roar Skaare