I'm having the same problem on my Epic. I've turned off calendar syncing, cleared the calendar storage, turned on airplane mode, then turned it back on, turned on calendar syncing...and nothing. If I try switch to a new view (month to day) the screen goes black. Black screen also happens if I try to go to the calendar settings...eventually I get a force close.
Also, today my Epic was replaced because this calendar problem occurred on my last phone but we thought it was because of the 2.2 updated/fiasco. It's also occurring on 2.1 :'(
I'm lost without my calendar.