giovanni, another way would be to scan that satellite again, you might have to add it to your VS if its not listed, it was once called SBS6 and is now called Horizon2. Scan it while you're still pointed at 74, so you'll have those channels scanned in on the right bird. Don't set up motor control on 74 until you've scanned it, or the motor will move the dish again before it scans.
Then you can try moving the dish to 79 with USALS and see if you hit it. If not you'll prob need to loosen the motor bracket on the pole and turn the dish/motor slightly to the west.
Then you can try moving the dish to 79 with USALS and see if you hit it. If not you'll prob need to loosen the motor bracket on the pole and turn the dish/motor slightly to the west.