Calendar reminder deletion problem

Hiya!

I've synchronised my mobile phone calendar with Outlook and items in my
mobile have a start times but no end times so Outlook has given them a
default end time earlier than the start time. Now those items with a
reminder on them keep reminding me and can't be deleted or opened
because of the time mismatch. So even after I delete them they keep
coming back and reminding me each time I open Outlook. When I try to
delete they them I get an error outlining the problem and warning me
that I may be reminded again (and I am!).

Is there a way of finding the actual items in their folder and
delelting them? I've searched all the outlook folders on my computer
but can't find any entries.

Cheers!
AL