Has anybody out there encountered this problem? It may be a simple setting i need changed...
When my 580EX is mounted on the Flex TT5 for an extended period of time it will go into sleep mode. That's fine and i do want it to do that.
The problem is it does not wake again. Either from pressing the test button on the Flex TT1 or half pressing the shutter release or full pressing the shutter release.
Any ideas?

