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I installed 10.5.7 on my 2008 1.83 Ghz Core 2 Duo Mini, and I've had nothing but problems. OSX has quit several times, and I even got the "gray screen of death". Ugh. I should have updated with the Combo pack.
 
I'm experiencing the issue with the display. Thanks for this link!

I had the gray screen of death as well.

Unfortunately the fix (command + option + P + R during a number of resets) did not resolve my resolution issue.

Does anyone else have any insight on how to fix the problem?
 
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