Apple has released ProKit 5.1 (Leopard and Snow Leopard), an update to operating system-level components shared by the company's professional and semi-professional applications (Final Cut Studio, Final Cut Pro, Motion, Soundtrack Pro, DVD Studio Pro, Aperture, Final Cut Express, Soundtrack, Logic Pro and Logic Express). Addressed in ProKit 5.1 are improper scrolling behavior, memory leaks, and the "layout of interface elements in certain application alert windows." (Free update, 32.39 MB)
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Set a Default Finder Column Width
When in column view in the Finder, if you want to set the width of all the columns to something different - and have it stick! - Option-drag one of the column handles at the bottom of the window.