I have tried every method I know to make this machine react to MMC/MTC/SMPTE, handsignals. It just sits there. This is a stock motherboard Gen I unit. The manual on this machine leave a bit to be desired and is of not much help and I am out of ideas on this. Anyone else run into this issue? I put this in place of a Mackie HDR with all of the same hookups. The HDR generates MTC and SMPTE, I can't tell if this unit will or not in terms of MTC and MMC. When that didn't work I took the 1/4 out of the Mackie HDR and had it spit out SMPTE to the 1/4 inch in on the X48, chase button lit, nothing happening. Tried it at -10 and +4 balance cables, unbalanced cables. Nothing. Tried every setting under the sun in the sync, prefs, and transport pages... nothing. Tell me I am missing something silly.