Vista and Outlook 2003

My Outlook is acting up. It no longer pulls up email addreess when I type a name or partial name (autofill still works), will not use distribution lists or allow BCC.

Can someone help me please!?!?!

Here’s the additional detail you might need:

Brand new Dell E1405 notebook
Runs on Vista Home Premium.
Fully functional version of Office 2003 including Outlook 2003 that was used on old computer.

I spent two weeks in tech-support hell because outlook would not work at all out of the box. I finally got a smart guy on phone who had me uninstall an outlook add on. This took me from not working at all to the above situation.

Please advise.

Thanks!

Tom