Along with resolution frequency/fps need to be matched as well. 720P 60fps is listed as SBS and TB compatible, SBS and TB will need to be selected in the projector.
I have a issue with my Computer and Receiver that even though I have the computer set to output 720P 60fps the projector has a listed input of 1080P 60. Which I am trying to figure out what is at fault. It does do 720P 60 because my 360 and PS3 do 3D games just fine and my non 144hz dlp link glasses sync.