will bring up the Force Quit dialog where you should be able to quit the offending program.
Now that the power button has been removed from the keyboard, there really isn't an equivalent to Control/Alt/Delete, that I know of.
If you have to Force Quit the Finder (Relaunch) your next step should be to restart the machine. Sometimes there is no option other than to hold the power button down until the machine shuts down.
P
Is there an equivalent to "Control,Alt,delete" for the Mac OS? I am a recent convert and my mac locked up yesterday and I had to switch off and restart.

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