Hmm, I have the exact problem - the wall switch will turn on from the local switch, but not from any other sources. However, it can be turned off by any remotes/controllers.

This switch is working okay as I got a new one so I got a spare one sitting around. I installed it in the kitchen with a 100W load ceiling light.

I can dim up/down and off from a Palm Pad, but not ON from any controllers except the switch itself. Please help.

Simon