This isn't really a question, more a cry of anguish. I've been setting up an old Crestron system I bought cheap on EBay to control AV equipment and C-Bus in my home theatre. I gave up on getting the Crestron processor to talk directly to C-Bus via a PCI, I'm using dry relay contacts into a couple of bus couplers... ...but I started getting weird intermittent problems while trying to control the lights in my HT via my Crestron ST-1500C/receiver/processor. Long story short, the RF signal from the Crestron ST-1500C touch screen to the CNRFGWA Crestron wireless gateway is being interrupted by my C-Bus wireless network. They are both on 433.92MHz and are fighting for RF spectrum! When trying to do a dim function, pressing and holding the Crestron touchscreen button, makes the bus coupler send commands on the C-Bus network, these are also routed to my wireless C-Bus network and bingo, the Crestron system falls over. I can't see any way around this. Michael.