Because of the issues Microsoft seems to be having with the update servers, it was Thursday before I got my Patch Tuesday patches for my laptop. Included in the various patches were some patches for Office 2003, which I have installed (except for Outlook) alongside my beta 2007 install. Lo and behold, after installing the patches and restarting, I opened a spreadsheet that I needed to enter some information in and it opened in Excel 2003. Apparently the patches reset my defaults. I had to go open a 2007 application and wait about 10 minutes for a configuration wizard to run before things got back to normal.

So, don't be surprised after getting patched if you need to run this configuration when first opening any 2007 applications.