I've got a buddy that has a 2 terminal PcAmerica system. He switched Credit Card processors and ever since he did this, he can only run Credit Cards on one terminal. He is getting an error back from the processor when he tries to run a Credit Card from his other terminal. Anybody ever run into this or have any idea what could be wrong. He has spent hours on the phone with PcAmerica's tech support, and they could not figure it out. Thx