The item that gets the most comments on this Weblog is about the E18 error generated by Canon digital cameras. The error means that the zoom lens is stuck and won't move -- and you can no longer take pcitures. The problem is typically caused by dust buildup or by damage.
Vladan Nikolic has created a Web site specific to the E18 error. It has links to other sites, including the class action law suit begun against Canon in the USA. Visit www.e18error.com.
Yesterday my camera fell out of my coat pocket two feet onto a linotile floor. The lens no longer comes out, and so the Canon S1iS no longer turns on its LCD screen (nor viewfinder). Clearly it is jammed, my fault. But I'll try some of the techniques listed at Mr Nikolic's site for unjamming the lens.