Gear: Mac OSX 10.4.8 Logic ver. 7.2.3 M-Audio Firewire 410 ver. 1.8.1-3 V-drums Here is the deal. To use the Spdif IN's on the 410 I have to setup external clock. Problem is my V-drums seem to become out of clock synch intermidantly during a performance using the Spdif conection. A huge POP will come out of the speakers along with a host of other problems. Basically an audio card meltdown in which I have to reboot the computer to reset. I could use the analog IN's but that is a drag because I want to free up the analog IN's for other instruments. Any help would be appreciated. Thanks.