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1095 Views 8 Replies Latest reply: Oct 30, 2007 7:10 PM by RJSky
Currently Being ModeratedMar 22, 2007 6:04 AM (in response to pytey)Sounds like VRAM corruption. Does the problem persist between restarts (by which I mean shutdown, wait 10 seconds or so and then boot)? Also, you might want to try removing power to your external display and the same for your MBP (both AC and remove the battery) and see if the problem persists. Also, reset PRAM…
As a last thing I would try booting off a clean installed copy of Mac OS X, preferrably installed on an external drive.
Otherwise, call AppleCare.Mac Pro 2.66GHz 5GB/4x300GB/ATi X1900 XT/AE/BT ; Dell 2405FPW, Mac OS X (10.4.9), MacBook Pro 15.4" C2D 2.16GHz 2GB/120GB/Glossy ; Mac mini CD 1.66GHz 2GB/80GB/SD
Currently Being ModeratedMar 22, 2007 6:16 AM (in response to infinite vortex)Hmm, thanks for the advice. I've reset the PRAM earlier but this didn't help. I think I'll try booting from my wife's MacBook in target disk mode.MacBook Pro C2D 2.33GHz, Mac OS X (10.4.9)
Currently Being ModeratedJun 1, 2007 9:30 AM (in response to pytey)Exactly the same problem has developed recently on my Macbook Pro. The computer has to be pretty hot before it starts, so I only see it after some heavy usage. Interestingly, my yellow cubes appear to be angled in a mirror image of yours. I can take screen shots of the effect and send them to anyone at Apple who cares to take a look. The effect disappears temporarily if I switch screen resolutions; but it returns pretty quickly. Did you manage to resolve the issue and if so, what did you do? My MBP's under warranty so I may send it back for repair as it looks to me like a typical VRAM problem.
MBP Mac OS X (10.4.9)
Forgot to mention that I ran the hardware test and it reported back that all is well.
Also, if you get the same problem after booting off another hard drive, it has to be a hardware fault!
Currently Being ModeratedAug 11, 2007 1:19 PM (in response to David Miller7)Logic board replacement was required and fixed this problem; BUT since that replacement, I've been unable to mount any Windows installation discs properly. Means I can't install any applications on my Parallels drive (including installing Windows on a Boot Camp partition). Over to another forum!2.2Ghz MacBook pro, Mac OS X (10.4.10)
Currently Being ModeratedOct 29, 2007 7:13 PM (in response to pytey)hi,
i've been having this problem for a wile on my mac, but wasn't too often so i never worried too much about it but ever since i've upgraded to the new Leopard this problem got even worst, now happens all the time, i don't even have to do much to trigger.
have a look at the screenshots:
can someone help me?
danmac book pro 17", Mac OS X (10.4.10)
Currently Being ModeratedOct 30, 2007 7:10 PM (in response to pytey)I have no idea how this affects computers, but this looks to me like your typical digital signal interference.15" MacBook Pro, Mac OS X (10.4.10), 2.4GHz Intel Core2 Duo | iPod Nano 4GB (3rd Gen) | iPod Mini 4GB (2nd Gen)