Hello,
Did you Google that?
UBYTE4N
There are a number of references to this all over the Internet. You could've just did a Google by yourselves and found lots of people already had this problem. Anyway, the general story is that your hardware is just not compatible with that game. So, either forget the game, or buy new hardware.
If you think there should be a simpler answer, sorry, it's not likely.
But please do not go away mad. allow me to ask you about the vendor that sold you the software. He should have posted on his website information about the requirements for the game. If not, then you have a valid reason to ask for a refund. This is so even if you are ready open package. Here in the United States, I assume you bought it from a vendor here in the United States, there are laws regarding information and accuracy in advertising. If the game had been advertised in such a way as to imply or suggest that it would work on any of the newer computers, including yours, then you would have reasonable cause to complain against this vendor.
If that says it's your case, we would like to know who that vendor is so that the rest of us can be aware.