#oracle Virtualbox 4.0.x doesn't work on !debian sid

Seems that is a known issue ,
I have dist-upgraded and from vbox 3.x is now 4.0 but that is very slow
the windowsxp vm works with cpu 100% in top and the mouse moves like in slow motion
I will remove virtualbox and use virt-manager from now on

ps: yah i want to see my grades on the university website ...works on ie only fsck