> > > Speaking of laptop calibration, laptop hinges could use calibration. They > are not created equal, I have seen hinges which lasted almost 20 years an= d > others which last 2 months with care. Laptop body to display flexible cables are very variable in quality. As with the hinge proper, there should be enough expertise by now to make them reliable over say the 10,000 cycles of a moderate daily user - or even the abuse received from eg a travelling product demonstrator. 50,000 cycles should be "doable enough" and would address unrealistically long lifetimes or high usage. 50,000 / 2 years =3D 68 cycles/day (!) /5 years =3D 27/day Once an hour 24/7 ~=3D 5 years. I have seen hard-drives and motherboards which did not last until lunch-time on day one - why should a hinge do better ? :-) Russell --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .