I have an Exchange 2003 environment with clients running Outlook 2003 and
upgrades to 2007 running.  In one office, the entire suite moved to Outlook
2007.  Now some of the users group scheduling windows cause Outlook to crash
and restart.  Others work normally.  

The crash occurs when you try to view an individual's calendar via the group
scheduling window by clicking on the fiel folder icon next to their name.  
The window for the calendar will open and allow the user to view it, but when
they try to close that view, Outlook hangs for about 15-30 seconds then
announces that there is a problem and allows you to send a report to
Microsoft.  After this completes, Outlook opens again and works normally
until you repeat the process.  

Office SP1 has been applied and that does not make any difference.  Windows
and Office have been patched by means of Microsoft Update.  This is getting
very frustrating and I cannot find anything similar on any forum, newsgroup
or knowledge base.  Has anyone crossed this before?