I bought an new imac July 09, running Leopard (before the upgrade to snow leopard) I ran my Copam 2500 with Signcut X2 and then Prod. Pro. Run fine no problems, then the upgrade came from mac to Snow Leopard, it all came to a crashing stop. I can run the program fine but it will not communicate with the cutter at all. I send my art to my old ibook G4 and it runs the software for me. that SUCKS too. EXTRA time....