hi i just built my new HTPC and i love it. i bought a harmony 890 the RF one so that i could control my htpc remotely if it was in a different room. I dont know how to do this. I have the RF extender that came with the remote is there anyway to connect that to the pc using its usb port on the RF extender. I also have a RF keyboard and mouse also made by logitech could i use the RF pc dongle the the keyboard and the mouse use. All i want is to control MCE with my harmony 890.