I just updated iTunes to 10.5, and now it's not working right. Restarting hasn't fixed the problem. When I start iTunes, I get a few minutes of this:
After waiting and waiting for it to load, it gets stuck at this, and just stays there:
It's only been doing this since I upgraded to 10.5. Anyone know how to fix it?

After waiting and waiting for it to load, it gets stuck at this, and just stays there:

It's only been doing this since I upgraded to 10.5. Anyone know how to fix it?