I've posted this issue already, but this seems like an appropriate place to say it again.
I have an issue with my 8100 in that task reminders do not always go off. Particulary, any recurrence after the the first occurrence of a recurring task. These seem to never work. I am marking the tasks complete, and if I then open the task, it clearly has set all the fields to then pop up a reminder on the next occurrence. But, it just doesn't work.
A few times even Tasks that are just one occurrence to not trigger a reminder either.
Any news of this being a known issue, or of any fix to this annoying problem?