Problem starting a Virtual Machine, hangs at 95 %

Hi

I created an XP vm on a Vista 64 host and when I try to launch it status hangs at 95%... (the OS has not yet been installed that`s what I'm trying to do)

Does anyone knows what the problem might be ? Is there a log or something similar that I could look at to give me an idea of what the problem is ?

Thanks

Paul