this is my receiver model. How do I use keys or codes? Do i have to connect my pc to my receiver through an rs232 cable? I have such a cable but one end doesn't have anywhere to go on the pc cache. it doesn't seem to fit anywhere back there. Or can I just use the keys by manually inserting them. Please help me somebody. I have no Idea where to start from and nobody to turn to. My local installer won't tell me anything because he want's to earn his money every two months when he apparently upgrades my receiver by taking it for two days and then bringing it back seemingly opening up a few channels. He does this to everybody in our neighboorhood and our area. And nobody here in a small city in Iran speaks english well enough to join these kinds of forums. Please help me out.