Whilst the car anology is old and dumb, have you bought a car recently? There are always faults with new cars.. do they stop you driving? not usually. There are always faults with new operating systems.. do they stop you using the computer? not usually. But from there on the anology breaks down. The engineering parts of a car are deterministic, they have a a correct and absolute solution. Operating system software is probably the most complex commercial mass products sold and cannot be ‘solved’ in the same way. The number of different combinations in which the customer can use and abuse the product are, for all intents and purposes, infinite. There can only ever be degrees of useability and the development process involves iterations that move towards a perfect, but unreachable, solution. With software the customer is ALWAYS part of the testing process and if you believe that the point one release of a new operating system should work perfecly you are a complete idiot. The difference between software and cars is: OSX 10.4.1 will be out in a couple of weeks and will solve most people’s complaints; try taking your Mercedes to the dealer and see how long it takes to get it fixed.