Don't Use Office 2007 Beta

Why?

1. The document format is not backward compatible with earlier version of Office
   
2. The GUI is a pain in the ass, totally different from earlier version
   
3. It's free version, you know how M$ treat the free version of anything free
4. It's beta... you know what beta mean, don't you?
5. Use MS Office 2003, or Open Office instead.