I just got a 606 this past weekend. But it has a sync issue. It won't respond to or send out start/stop messages. When being the slave, the run/stop LED will light, but the pattern won't play. And when the master, the same thing happens, only on the slave device. It runs perfect on it's own. So i'm thinking theres something up with PIN 1 in the DIN socket, or a bad solder connection. Anyone have this happen to them?? I'd like to get it fixed before the 13th for a gig.