Linux freeze when switching console with Ctrl+Alt+F1

[chrisibaer]

I am booting with the "Damn Small Linux Not" Iso dsl-n-01RC4.iso
inside of VirtualBox 1.5.0 on a Windows XP Host.

When I want to switch to the text console the virtual system freezes completely.
I have noticed that this does not happen when I start the VM with the -norawr0 option.

I've never had those problems before when booting into real hardware.

Hopefully someone can help me with this problem.