Seven months after the first iMacs shipped with Thunderbolt, there are only a couple of Thunderbolt-capable peripherals available. Why? At Macworld, Joel Mathis looks into that question, suggesting that the problem revolves around Thunderbolt’s complexity and cost. follow link
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Disabling Dock Space-Making Feature
Having a hard time dragging a file into a folder in the Dock without the Dock trying to make room for it? Holding down Command while dragging the item temporarily disables this Dock feature.
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Where Are the Thunderbolt Devices?