So what kind of troubleshooting algorithim do you guys go through? Do you rely on someone else (Biomedical technician)?What tips do you have?Here's some of mine. Make sure it's plugged in both at the outlet and into the machine.Try turning it on and off (Most issues respond well to simply going through their boot restart I guess the engineers call power cycling).Bad picture on the monitor? Make sure if you have Digital imaging that your monitor is using this input (all these monitors have VGA, SV, DVI Being the digital one that provides the best picture) Another thing is wipe the end of lens with an alcohol wipe this usually clears up any residual detergent thats caked on (Foggin is a whole other issue hot water or fog out is the answer).Bipolar cable not working? Try bending the little tabs out a bit so they make better contact on the inside of the generator. I realize there are systems in place for dealing with these issues but I think you get a lot of Credit for problem shooting on the spot. BTW ever had an instrument stick? Open a chromic gut suture and pour the preservative liquid thats in it around the stuck part. It works almost every time.