I've been playing with the Donkey Kong from Sock - It is amazing. It did get me to thinking, though. I wonder if the CoCo 3 is powerful enough to emulate a ZX81? I bet Mr. SockMaster could pull it off. I don't know why anyone would want to emulate a ZX81 on the CoCo - really don't even know why it crossed my mind - Lil' John ...