Windows 7 rc "windows is not genuine" Please Help

Hi, Im having a problem with my windows 7 rc, windows is telling me its not genuine, about 30 minutes ago it was fine, then i restarted my pc because it started to slow, when it came back my background turned back and it told me it was not genuine. Can anyone help?
Thanks in advance.

Jacee said:

Is this RC build 7100?

Yes it is.

richc46 said:

Put the number in again, if it is not valid you will be given a phone number to call. You will be given the opportunity to put the number in with the touch tone phone. If not sucessful, you will be given the opportunity to speak to a person. It should be settled, at that point.

I entered in my Product key again, it gave me a error 0x8007000D i noticed alot of people get that same thing. but i'll make sure to call right away and see if i can get this resolved.

richc46 said:

I know that this is not pleasant, but MS is very helpful in this area. Things will work out.

Well after looking a while i couldnt find a number to call. im thinking of just buying the actual copy of windows 7.