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14 How to solve problems

Everyone knows that software often does not do what it should do and thus there is a need to track down problems. We call this debugging in a reminiscent to the moth jamming a relay in a Mark II box back in 1947.

Most of the problems a merely configuration and user problems but nevertheless they are the most annoying ones and responsible for many gray hairs. We try to give some guidelines here on how to identify and solve the problem at hand.