Hello, At my high school we have been having an increasing number of problems with the dimmer rack in the auditorium, a Strand SLD96, two actually. We have been loosing dimmer modules left and right for the past couple years. I've tried everything that I feel capable of doing to try and fix them. I've swapped the bad modules with known working modules among other things. The main problem is that the rack processor does not even recognise that some of the dimmers are even there. Others are recognised but still do not work, even others still blink randomly while they are on. In an attempt to try and see what was happening when they blinked, I sat next to the dimmers watching the rack processor set to that dimmer until it blinked. What I found was that when they blinked they were really loosing communication with the rack processor. This is really confusing me and everyone at the school, and its a little alarming too, because we lost three modules and six dimmers before our last production. Our total lost is up to around four or five, and its always the dimmers that supply power to our most needed lighting locations. That was a long rant I know but any help would be apreciated as I'm trying to at least figure out the problem before I leave, as I'm a senior. Also the system is a 1:1 dimmer system (no patch), and I have an extra rack power supply, rack processor and processor to dimmer cards (I'm not going to mess with those though because you must take the rack apart to replace them). Thanks again, Rob.