I installed this program called KeyboardTest and I have the following results:
NumLock=ON, press ., key doesn't register.
NumLock=OFF, press ., key registers.
In Windows, pressing .in any field does not yield anything when NumLock is on. With it off, it functions as delete as it should.
So is my keyboard broken? I recently reinstalled Win7 (not because of a keyboard problem) and the problem existed in previous installs. I think that it may be obviously broken but this is the first time in all my years of using a computer where a keyboard has malfunctioned.
EDIT: This doesn't happen all the time, it happens randomly.