Desire :: HTC Sense Not Working After Froyo

I installed 2.2 the ligit way, searched for updates and asked if I wanted to download 2.2 so I did. Now HTC Sense will not even start when I switch on the phone. The phone starts and then says "loading..." and while it's loading it shows that lovely application error, normally you just click "force close" but application that's breaking is actually HTC Sense and the "force close" button is grayed out, then the phone restarts with the white screen and green HTC logo and then gets to the "loading..." part and then HTC Sense breaks again and the phone is stuck in an infinite loop.