Here’s my problem: I cannot view any other co-worker’s busy / free time
availability. Their status bar shows diagonal stripes and says “No
Information”.

I’m running Outlook 2007 connecting to Exchange Server 2007 (I thought this
would have the best compatibility).
Everyone in my office has set their permissions to read busy/free.
Everyone else in the office (about 20 people) is running Outlook 2003 and
they can see everyone else’s busy/free status. I’m the only person using
Outlook 2007 and I’m the only person who has this problem.
If I use a different machine and log into Outlook 2003, then I can see
everyone’s free/busy availability.

What is happening with here? Is there a known problem with Outlook 2007 and
Exchange 2007?