My x-10 system has me baffled and I'm looking for ideas. We recently moved and when I re-connected the x-10, it can't find the cp-290 controller. Port is set as #2, cable checks OK. I borrowed another person's system (cable & box) and the same thing happens, can't find the controller. I thought I had it pinned down to maybe the serial port on the motherboard went bad, then last night I hooked up an old 9 pin serial mouse. XP detected the new hardware, loaded the drivers and everything worked automatically. I also tried uninstalling and reinstalling the software but that didn't do a thing. I have moved 3 times over the last 8 years and there has never been a problem re-connecting. Any ideas where to look next? Thanks, Living in the dark!