Black Screen, Leopard 10.5.2 Intel IMac

G

geo6121

Registered
Hello Readers,

Middle of last month I bought a 20" IMac. Everything was fine up until about 1 week ago when the screen went black. I clicked on the mouse button several times only to have a password box pop-up. After filling in the response, all was fine.

Next, same scenario but the password box didn't appear any more. The only way to get the screen back was by a forced restart.

I turned off the screen saver, set the 2 controls in energy server to off, unchecked the box at the bottom left & put "auto login" to to on the Accounts window.

Problem continued.

Next move was to zap the pram, this was 2 days ago. The screen didn't go black but often asked for my pw. It's now back to its beginning phase which is a forced restart !!

I was told that it was due to Leopard 10.5.2 & am considering going back to 10.5.1

Opinions, suggestions ?

Thanks for any replies,

Geo
 
After this has happened and you power on the Mac the next time, look at Console for system.log and console.log for entries of the time just before your forced shutdown, and between that and since the screen went blank. I suspect there will be some processes crashing and failing to autorestart.

Do you have the Mac on with its hard drive on always or does it go to sleep after a certain time?
 
Thanks for the rapid replies. I've certainly got things to try.

As I explained to Randy (please see my response), this last time the problem arose was over the w.e. & I was logged in through Timbuktu. I plan on physically restarting her computer today & attempting to have a go at all of your suggestions.

If any other ideas pop-up, please don't hesitate to post.

Thanks.
 
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