All is fine until step 6(waiting for changes to reconcile) of syncing my iPhone to my iTunes. Then I get that rainbow ball. I check my force quit applications and it displays that my iTunes is unresponsive. I've tried re-downloading 10.5 b2 off of developer.apple.com and reinstalling it but it still goes unresponsive. My iPhone 4 is running iOS 5 b2 if that info helps with anything. Does anyone know how to fix this?