I bought the RF-602 wireless flash trigger (1 transmitter, 2 receivers) off Ebay and they were working perfectly with my D300 and SB600/800 speedlights but have suddenly stopped working! Initially I believe it was an issue with the transmitter, but now I also notice that the receivers don't bring the flash out of standby mode when connected to the hot shoe whereas previously they did. I was using the triggers as a remote shutter release last night and it just stopped working for no reason.

Anyone else had similar issues?

Cheers
Leigh