Well, lets start like this.... is it an illegal copy? It looks like something that may happen if you tried to do a serial for it or something illegal to patch it.
I suggest re-installing it too. If you are hacking it though*Whispers* Then you may want to try another type of hack.
It works fine on the other comp, but when I copied the files and transfered it on a disk to this comp, it showed that window every time I attempted to open it.
That is because it was copyrighted. It's a smart disk install or something. Because if the register of the product dissapears "miraculously" when you copy it, it tends to send a message to your brain saying "OH! I can't make illegal copies of this product.''
Oh, trust me, I know this. I helped him... I hope. The people after me were rubbing it in his face =X