got 4.5 to download and install fine... I thought. Then I did a sync with DM and it sync'd address book, task, memo and then completes - no calendar. One odd thing I did notice was that when I hit Reset configuration when I am in Sync Configuration area it goes back to all four items unchecked.
Everything else seems to work fine - oh and it won't sync either way. have done battery pulls and computer restarts neither helped