Outlook crash when open shared calendar

Hi,

We run Exchange 2007 with Outlook 2007 as client. Outlook will crash no
matter which desktop user A log into when open user B's shared calendar, but
user A is able to open other people's shared calendar fine. This problem can
be repeated on different desktops. On same desktop, some user can open user
B's shared calendar, but Outlook crash for others. It's very weird. It's
seems something to do with the user's account, but cannot figure out what's
the problem with the user account. So far only user B’s calendar will cause
Outlook crush.

I got error 1000 in the event viewer:

Faulting application outlook.exe, version 12.0.6514.5000, stamp 4a89dc70,
faulting module outlook.exe, version 12.0.6514.5000, stamp 4a89dc70, debug?
0, fault address 0x00a02207.

Did anyone see this problem? Please help!

Thanks in advance!

Lisa