hi guys, long time listener, first time caller. I am typing this with my bottom lip trembling as I've just run into a problem with my seleco svp350+ and I am, to put it mildly, choked (sniff!). As we all know, CRT's are a labour of love (and that goes twice for the SVP350 with it's manual pot tweaking) I was just giving the convergence a quick tweak and was feeling jolly pleased with myself and the results. In fact, I was just at the point of chastising my lazy ass for not doing it any sooner when I noticed that, all of a sudden, no amount of pot spinning was having any effect on the picture I was looking at and it wasn't just related to one or two pots, either. In fact, all of the corner adjustment and most of the other pots on both red and blue (haven't tried green) no longer have any effect when turned (although a few of them still work as intended). Needless to say I am distraught and ran to my computer to get some help from the experts. Is this (gulp) indicative of something horribly gone wrong or is there a perhaps a more simple solution such as (I know I'm grasping now) a switch that could be put back into place that would magically fix everything? Any help or advice would be MASSIVELY appreciated here (Chris! Chris! Where for art thou, Chris?). As a side note as I was scanning around the projector I noticed a switch labeled "SW501" which has a red LED next to it. Can anyone tell me what this does to distract my mind for a little bit. I haven't touched it and the LED is set to off at the moment.