I use two laptops, which are synched through my Blackberry to each other.
Normally, the calendar events synch with no problem.

I'm setting up a series of events that have their own category which I
defined in the master category list. When I synched to the Blackberry from
that computer, everything copied just fine. When I synched to the second
computer, the synch program showed that a lot of calendar items were being
loaded to my laptop, but they appear to be invisible.

I had gone into the master categories on the second list and added the
category established on the first computer before I did this.

Any ideas?

Thanks.