I have an 8830 and was running desktop 4.2 & synching with Outlook. Was working fine but recently upon synch it is changing appt times and adding times to all day appts. I deleted desktop and installed version 4.3. No difference!
These are business appts, I can't deal with it changing appt times/days.

I also did the battery pull, no difference.
Anyone?

From the Main Screen go to Option > Select: Date/Time > Confirm your Time Zone is correct for your area, if not this will need to be correct to allow for proper syncronization.

Problem solved! It was not the BB that the time zone was wrong in, it was my laptop. Was in CA last week & changed the time zone to Pacific. When I returned I changed the time but not the zone.

That isn't it... I have the same problem with my bold.