When I press ALT+F on a particular Windows 8 machine, nothing happens. If I want to evoke ALT+F capabilities, I have to hit ALT then F. So I'll hit the ALT key, release, then hit the F key. What bothers me about this is that I can hit ALT + E and it works just fine. Only functions that rely on ALT+F are effected. Something got changed somewhere but I'm not sure what or where.