not without trying one of my suggestions, I'd try restoring the MBR, then if that doesn't work probably reinstall (it only takes about 15mins afterall)
Hm... quick thought, are you (or have you) doing what I know some people do when dualbooting windows on two separate drives, namely only having one of them in at a time. If you are, try using it in the same configuration you had when you installed mint. If you're not, try it.
Maybe someone else has some more Ideas, but I've given you a couple of suggestions to go on, and can't do anything else unless you have more info (gained by trying one of the suggestions and reporting what happened)
If you have a question that has been answered and solved, then please edit your original post and put a [SOLVED] at the end of your subject header
Hint - use a google search including the search term site:forums.linuxmint.com