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OS X - Operating System General OS operation information and support

freezes when hover over dock / Display issue on startup

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Member Since: Mar 14, 2012
Posts: 2
fyodor1917 is on a distinguished road

fyodor1917 is offline
Powerbook g4, OS 10.5.8

Sometimes when I start up my computer the screen tweaks out and displays a bunch of squares like in the attached picture.

Other times it will start up normally but as soon as I hover over the dock the whole computer freezes. I can still move the cursor around but I can't affect anything.

Neither issues occur when I boot in safe mode. I tried running a disk check but it found no problems. Any ideas?
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