Ok so I try to open a .doc attachment in mail, it says it does not know what application to use. I have to chose application every time and then it will open. If I open a document from the hard drive, that works fine. What do I need to do to get mail to automatically open the doc in ms word? I have already tried removing word with their uninstall utility and reinstalling and that has not helped. This is mac os x 10.4.6.