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Why does zapping the Pram no longer work?

527 Views 17 Replies Latest reply: Nov 30, 2012 1:19 PM by gumsie RSS
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marysplacestudio Level 2 Level 2 (385 points)
Currently Being Moderated
Nov 29, 2012 12:17 PM

I have tried this on four different Macs now, holding down Command-Option-P-R while the computer restarts. Been doing this for years. But now it no longer works; the screen starts up as normal without restarting again.


Has a recent software update changed something? It is the same on machines running both Snow Leopard and Mountain Lion.

MacBook Pro, Mac OS X (10.7), 2.3 Ghz, 8 Gb ram, 17"
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