Sounds like a line noise problem. Try plugging your lamp into the transceiver (device #1); that should eliminate any 'travel' between the transmitter portion of the transeiver (sending the code on the AC line) and the reception of that code by the module. If that works ok, then move the lamp to the lamp module in the same outlet. Trial and error. Since you've eliminated the PC as a potential, since you're experiencing the problem with the palm pad, it either is an RF transmission/reception problem or an X10 line transmission/reception problem... Or you could have a defective palm pad or transceiver. Have had no problems with mine (just received)... I know that's small consolation to you.

Steve