Problems with XP on Parallels 6

I've just installed Parallels 6 and already had Windows XP on Bootcamp. Windows working correctly if i choose it when computer starts.
But when i try to boot it through Parallels (6.0.11800) it doesn't work: boot starts and at the same time choice of load variants appears. I chose simple windows load and it looks like boot starts. Windows logo and blue status bar appears but then it disappear and only black screen.

Maybe some one already solved this problem?

Thanks in advance.