Probably not a major hint, but something interesting I just noticed, as well as how to fix it. During my time with a developer copy of Leopard (about two months), I noticed that the printer icon would remain in dock after a print. I just never thought about it much until today, when I was cleaning up the Dock after loading the final release of 10.5. If you control-click the printer icon and select Auto Quit from the contextual menu, the printer icon will then disappear when future print jobs complete. Again, not a major hint, just an interesting thing that I would have thought would have been enabled by default.

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