This warning sign made me start thinking and investigating...........
I belive Peter McLeland made FS 2002 a bit of an 'unsafe' flying enviroment so I guess MS was forced to put up warning signs in FS2004 !
The next step, in FS 2006, will be a virtual FAA/CAA that will charge you $50 if you violate any rules. If you get caught you have to type your credit card number or else your HD drive will be erased forever ! :-)