Yup. That's always a favourite. I've seen one Toshiba Satellite (and heard of a great many others) die due to a clogged heatsink. Compressing so much hardware into such a small space causes issues for heat build-up and laptops just don't have the tolerance for crud build-up that a desktop has. Thankfully I can print them via my GF's computer so although it's a bit of a faff, I can get paper copies. That's tomorrow evening's task as we're starting to scale up production and I need to be able to get measurements fast!