Yea, I have updated to 5.1 two days ago I think (After that I had renewed my OD Subscription) and today after two skin change since the update it totally screwed up, all as crashed it was like if WB as closed up and the explorer as crashed in same time. Also my start menu was all black, so I tough that the activation system didn't activate well (My OD subscription as been ended the 11oct). So I restarted to see if all would be ok or if it would be black like I heard for the cracked version. At reboot it was pretty slow, but it wasn't black, I mean, the only thing I saw was the taskbar and it was ok with the translucent effect. I noticed that my CPU (PentiumD OC @ 3.7GHz) was at 100% in my logitech G15 Keyboard, I tried to open taskmanager but the computer as frozen right here.
So I rebooted (With reset) and went to Failsafe mode then I had uninstalled WB5. Back to normal mode, I re-installed WB5 and rebooted, but all was the same (Except that this time my G15 software didn't have started at all).

What could do this? I mean, even with the clean re-install of WB5 it was still do the same thing. Maybe a problem with my subscription renewal? Did I need to do something special? (First time I renew it)