This is getting me insane, I got Office 2010 (I think it is still trial).
When I try to open a file made in 2007 (both 2010&2007 save in .docx) it shows me this:
http://www.flickr.com/photos/60633736@N03/5568673664/
Translating (sort of...): There's not enough quota to do this action.
Please Help, it look like it is cuz of Tune Up Program Deactivator