I've read this post http://www.thephotoforum.com/forum/...6-pocket-wizard-canon-600ex-rt-speedlite.html but it's not helping me... I'm trying to use a Canon 600EX-RT Speedlite off-camera, triggering it with two Pocket Wizard MultiMax transceivers. I bought the cable to connect the Pocket Wizard to the flash (and an extra after reading that they're unreliable). When I test fire the transmitting Pocket Wizard (attached to the hot shoe of my Canon T4i) it fires the flash. When I press the shutter button nothing happens. The flash is in Manual mode, and the Pocket Wizards are on the correct channels (as proven with the test fire). When I went into the camera's Flash Control settings in Menu, and try to adjust the External Flash Func. Settings it tells me there is no flash. So my camera isn't recognizing the Pocket Wizard? Can I not use the MultiMax with my T4i? Is there an affordable alternative option? (buying the canon transmitter or another flash is not an option right now) Sad Panda. Thanks for any help, it's GREATLY appreciated!