Outlook 2003 Other Calendars List

[jpenn]

In my Other Calendars list, if I check the box next to a name, the nam
disappears from the list! (But the calendar displays anyway). Th
checkbox remains, but the name disappears. When I remove th
checkmark, the name is restored and their calendar goes away. I ca
close Outlook and reopen it and all the names in my Other Calendar
list reappear, but the minute I check one of their boxes, the name i
gone again! This is really strange - any ideas?

Thanks in advance