If I open a shared calendar it is fine until I try to close the shared
calendar.
Then outlook crashes and needs to be restarted. After restarting outlook,
when I try to open and close the same shared calendar again the same error
occurs
This problem does not exist on all shared calendars. When I recreated the
link in "People's Calendars" by removing the link and open the shared
calendar, the problem is temporally solved.

Every time a have got the save event in my event viewer.
Event Type: Error
Event Source: Microsoft Office 12
Event Category: None
Event ID: 1000
Date: 12/3/2007
Time: 2:24:11 PM
User: N/A
Computer: XXX01234
Description:
Faulting application outlook.exe, version 12.0.6028.5000, stamp 4684c4e3,
faulting module outlook.exe, version 12.0.6028.5000, stamp 4684c4e3, debug?
0, fault address 0x00a1b1a3.

Things that I have tried but with no result are:
Installing Office 2007 on Windows Vista.
Updating with the latest windows and Office 2007 fixes using Microsoft
update.
Installed Outlook 2007 hot fix package: kb939596
Recreated the outlook profile.
Made user member of local administrator group on system
Disabling the McAfee anti virus software
Disabling the firewall.

I'm using Windows XP SP2 and Office 2007 Enterprise edition.