New cinema display on Mac Pro monitor keeps turning off/going dark. Support told me a keyboard shortcut (something like option R L)... I'd appreciate it if anyone knows it. I had this problem when i 1st bought it 2 months ago.

My new cinema display fro mac pro just went dark. When I 1st bought it, the display wouldn't turn on.I called support and they gave me a keyboard shortcut - something like Option+R+L - that you held down for 2 restart cycles. Then it magically turned on. I can't remember the sequence and I'm afraid to guess! I'd appreciate if anyone knows the trick. I'm also wondering if I should bring this display back...

Cassandra from Apple Support ROCKS!!!! She's a supervisor somewhere and should have a raise. Pleasant, smart and professional with a customer who wouldn't take "I don't know" for an answer.
If your cinema display goes dark:
1. shut down computer
2. restart
3. immediately hold down Command-Option-P-R keys simultaneously for a few minutes (seems forever)
4. keep holding keys for 2 startup cycles
5. release and go back to work if you're lucky to have a restored screen

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