ok, it's a new bike. Had this problem on the AIDS ride (can't get into granny gear...once in, can't get out) but also frequent chain suck, chain just drops off the rear cog.

I'm careful not to cross gears. I've just had the bike tuned, sort of a post ride check up, I clean and lube the chain frequently....it's new campy record...why me? ;-) never had this probelm with Ultegra.