when I press command-Tab to get the task switcher icons, to let me change the foreground program, I am seeing that after a little while, the icons are badly miscolored. Anybody else seeing this bug? Thanks.

  • Does this happen after running any particular apps? Think about any graphics-heavy apps you might be running, such as photo editing apps or games. – bneely Dec 9 '11 at 22:07
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    could you add a screen shot for records? – Graeme Hutchison Dec 10 '11 at 8:44

Yes, I'm seeing the same problem on occasion. For me it happens mostly often when I connect an external display - the switcher looks as though it's underneath a semi-transparent black overlay. Restarting Dock.app (which runs the application switcher, as far as I know) doesn't help, but rebooting the laptop with the external display still attached does.

I've reported the issue to Apple (using their bug reporter) and have been informed that it's a known issue. Hopefully there will be a fix soon.

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