Sorry for jumping in Garfield-n-odie...
I have been seeing issues from time to time with the file associations for
older formats not working.
I may be way off base here... but does it seem like the problem is that when
you double click on .doc files they don't open in word, but if you were to
open word and then goto file, open and browse to the file it opens correctly?
If this is the case then there is a file association problem.
To fix... right click on a .doc file, goto open with, select word and make
sure that "always use the selected program to open this kind of file" is
checked. Hit ok.