Les the checks are fake they make them up with fake swift #( same thing as a rounting # for banks) but they make them and try to have you send the balance to them while the check is trying to clear but ends up bouncing.
I work at a bank and we see this at least 1 or 2 times every month or so. but what we and most banks are doing now is putting up to 20 day holds on the checks to make sure that they are real and if they come back we just call the FBI and get the whole story from the customer and try to track down the potential buyer, but most the time they are in a totally different country. It is like a flip flop deal they use it goes to 1 person to another and so on like that.
But most of the checks that we get are from Africa, and Nigeria and places like that.
but do not do it you can acctually contact the local police and tell them what is going on and they can do an investigation on the people, and see if they could be linked to other scams.
Jpope