Okay, you can send an error report to the cf staff. You can also check around if you need a special one for windows 7, because usually for totally diferent os there are different files. like different for 32bit and 64 bit you know what i mean right?
Something like this happened to me before the problem for me was i had too many of them open. REMEBER to run as admin. check ctrl alt delete and close them all if any open. Hope this helps.