IC2 Scanner stops and finds nothing

Many bread boards fail for that reason. frequently re-positioning or pulling out parts and replacing them is required to make them work. Itusually is caused be corroded component leads. I've used LPS (a marine spray lubricant and contact cleaner) on really bad ones, works a charm. @ Nick, The SIRF device has those long R/A pins on it, it does plug into the right places.

Bob