Installed Ubuntu,Win8. Now if I select Win8 in Grub it won't start.

[anopows]

Can someone please help me.
I installed Windows 8. Then created a new partition and installed Ubuntu on it.
But now if I want to select Windows 8 in Grub, it waits a couple of seconds and then restarts Grub.
Image: https://docs.google.com/open?id=0B0BEPJLJ19P2NlFrTnZORlE3T0U
Has anyone an idea how to get Win8(Consumer Preview) working again?

Thanks for every answer

 

[kegobeer]

Have you tried the Ubuntu forums? I see this thread, perhaps it will help.

[ubuntu] Dual booting 11.10 and Windows 8 - Ubuntu Forums