I have an acquaintance (honest, not me!) who has had a few overheating problems. To this end I suggested evicting the dust bunnies from his case and pointing a fan in. If this cooled it down significantly then I suggested, if he had space, add a Arctic Cooling TC fan or two (love these!!). He did this (two, one front blowing in, one back blowing out), I assume OK, as he is engineering based and has what I'd call gumption. As he was standing his case up he could see/hear a screw rattling about that he'd dropped and went fishing, and caught it, with one of those extendible magnetic pick up tools. Now he's having a problem. Personally I'm thinking a "dislodged connection", the description over the phone was vague, i.e. "Hey Kev, me f****n computer won't work properly". Before I go round and have a look later, what are your opinions on using this type of pick up tool close to micro circuitry equipment. Good? Bad? Personally I'd say bad. But I've no proper founding for that opinion. Just a gut instinct.