I bought a 10HT and a 7ft OWL screen at the begining of 2000. I bought the automatic 12v mechanism to plug into the projector but haven;t used it until now. I took the 4-core cable to the screen and the 3-core power cable both from the manual rocker switch. i wired them into the circuit board for the auto unit. I wired the jack plug into the "trigger" socket on the projector using cheap 2-core speaker cable. The other end wired into the third conncetor on the auto unit. when I turn on the projector the screen does not descend. I unwired the two power cables and put them back into the manual switch and they do work. Ive examined the 2-core cable and it looks fine. Any ideas? I emailed OWL support last week and it seems to have fallen on deaf ears. i dont think I've been a spoon, but wanted to make sure that there were not any know issues before I took it back to the shop.