I just got a new machine with Windows 7 installed. I deleted the installed trial version of Office 2007 becuase I own a copy of Office 2003. I installed Office 2003, and it seems to work fine (no Outlook Express though), but when I type a Word document and use the "look up" feature for a particular word in the text, it does not work. It shuts down Word and saves the document in the recovery utility. I use the look up feature often for meanings and origins of words, and really want it to work. Any ideas?