hi, everyone...I am STILL having problems with some aging Speedotron equipment that I was gifted a while back from a retiring photographer (...at least, at first I thought it was a gift...at this point, I'm beginning to think it's a curse!) Can anyone give me any hints as to what might be going on, here? I have a Speedotron blackline 2401A power supply, and 4 strobes. They are AT LEAST 30 years old. Maybe more. Here's the crux of the problem: I hook everything up, I shoot 6-8 shots, and they work just fine. Then everything stops firing. The ready light is on, and I'm not shooting rapid-fire, so I'm 99% sure it's not a recycle time issue. I am currently using a sync cord to my Nikon D80. It has been suggested that I turn the polarity of the household around, so I have tried that. No luck. I tried turning off the power supply, letting it sit a few seconds, and turning it back on. No luck. Today it happened (again) while I was doing a family mini-session. GRRRR! I ended up turning the whole thing off, and just using my hotshoe flash, which was the only other thing I had. I'll just have to edit out the shadows (I use them primarily for lighting the white backround, if it matters) later. As soon as the family left, I turned everything back on, put a teddy bear in a chair, and tried them again. Of course, they worked. What the *&^%$!? Additionally, and maddeningly, when I was using a radio-sync (before I got the sync cord), it did the same thing. Only, after about 10 totally black shots, all the lights went nuts and flashflashflashflashflashed. It was like somehow the box had saved up all the signals and spat them all out at once! Curiouser and curiouser.... So...any ideas, anyone? And if not, does anyone want to buy this equipment, super-cheap?!?!? BTW, I also fully recognize that it could just be my lack of technical experience, but I just don't have the time or patience to fool with it. If I can't figure this out soon, I'm going to just buy a set of alien bees and chuck this stuff in the dumpster!