Invalid CD-Key error all of a sudden.

Just started getting this error yesterday. EA's site tells you to run a exe that lets you re-enter the CD key so I did that several times, no help.

WTF?

I guess I could try reinstalling, but I am too lazy.

That sucks, I wonder if a reinstall would even solve the problem since you have already going through the process of re-entering the key. Maybe you just need to clear some of the file in your profile folder instead of a complete reinstall.