Will it let you re-apply the normal windowsUI without a reboot,or does it hang then also?What skins have you tried?If you want,post a little more of your system specs, and steps you're taking.I'm sure that will help.The mods may move this thread over to a better spot,where more may see it. Hang in there.
I'd suggest you install it again and post your system info (in a new post) so we can see what is wrong and get it fixed.
You may even want to start a new post,like Zubaz suggested.{edit} didn't see Zubaz's reply til after I replied,sorry.