I had the exact same thing happen. It happens to my MB when I let it go to sleep while attached to an external DVI monitor. While sleeping, if I disconnect it, and then wake it u…

At least yours goes back to normal. Mine is stuck at that screen with lines. No matter how long I leave it. It just happened again. I took a picture of it... http://images17.fotki.…

I imagine you're going to have to take it to Apple and let them have a looksee.

won't i have to duplicate the problem? it seems like it happens randomly. however, before i did the 10.4.7 update, i never had this problem. could that be related?

Quote: Originally Posted by iChelle won't i have to duplicate the problem? it seems like it happens randomly. however, before i did the 10.4.7 update, i never had this problem. …

my thoughts exactly. so what should i do about this? anyone else having this annoying problem?

Exactly the same here. It occurs after updating to Mac OS X 10.4.7 and QT 7.2.1 (both via Software Update). Reseting the PRAM does fix my problem temporarily. Few hours later the…

Same here after 10.4.7 and QT 7.2.1. Developed sudden shutdown twice several seconds post wake-up. Restarting after resetting PMU resulted in the vertical lines. The screen start…

Same here. Happened after the 10.4.7 update, and again today. Zapping P-Ram lets me boot.

Threads like this make me want to wait at least a month before buying my MB.

Just reapplied the 10.4.7 combo update. The machine immediately went back to colored vertical lines when it restarted after applying the update. Zapping PRAM got it to boot again. …

Quote: Originally Posted by Phil333 Threads like this make me want to wait at least a month before buying my MB. That won't guarantee that Apple will put out a goofy OS upda…

How do we revert back to 10.4.6?

Just out of interest, did those of you who are experiencing this problem update via the Software Update App, i,e, normal update, or did you download the Combo Update off the Apple …

I have two macbooks, one that is having the problem and one which isn't. Both were updated to 10.4.7 using the combo updater. Here's a post I made at apple discussions which seem…

Quote: Originally Posted by monkeybrain Just out of interest, did those of you who are experiencing this problem update via the Software Update App, i,e, normal update, or did y…

build 8J2135a

Mine was fine for 2 days after .4.7 up until today.

Mine did another sudden shutdown and white screen with vertical lines. This is after reapplying the 10.4.7 combo update earlier today. I've now reverted back to 1.4.6 to see if thi…

10.4.6 didn't fix the sudden shutdowns, but at least I don't see the vertical lines problem when it restarts. Looks like my MacBook also has a separate hardware problem that is …

Quote: Originally Posted by mmike70 My theory is that 10.4.7 somehow broke how the pram gets updated/saved with respect to a default boot device. I ran nvram -p in a terminal …

I didn't do anything special. Once I had the PRAM zapped a few (six) times, the machine worked normally - for a while. The line are one thing. The sudden shutdowns seem a separate,…

OK, I got the computer to boot from my install DVD and did what Mike suggested by setting the startup volume/disk from the OSX Boot/Install DVD (10.4.6). So far it's working. I wil…

Quote: Originally Posted by Dave Merten OK, I got the computer to boot from my install DVD and did what Mike suggested by setting the startup volume/disk from the OSX Boot/Insta…

Quote: Originally Posted by mmike70 That seems to be a common theme. Reseting PRAM after the 10.4.7 update and you may get this behavior. My macbook has been rebooting correct…