I see there are some posts about this issue. What I'm actually having trouble with is finding a way to get ANY calendar appointments to show on today screen. Currently none of them show up until the reminder goes off.
I'm hoping I can see at least one or two of them on my home screen.
P.S. BB Tour - and cannot find a "Today Screen" type theme.
5.0 Has a "Today" theme built in that would show Calendar, Phone, and Messages all on your home screen. If you don't feel like loading a beta OS on your phone, you could always download a third-party theme.