I am having trouble with the Coolsat DiSEqC 1.2 switch that I received when I bought my Coolsat 6000 receiver. When I disconnect the switch and hook the cable to the L side of the Invacom, I get a signal and I get no signal when hooked to the switch. Would you say that the switch is defective? If so, what kind should I get and where can I get one? Thanks. Dick