PowerBook G4 monitor turns into pixelated mosaic to where I can't see anything

traveliter

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{First post. /wave!!}

I'm a very long-time user but I've never encountered this problem before.

I have a Mac Powerbook G4 (12" monitor) that in the past week has begun to exhibit a strange behavior I have not experienced before.

Parts of the monitor that are normally populated by icons start to lose their integrity. It then slowly spreads, until the entire screen is full of these things, and I can't see what I'm doing.

It starts slowly. All of a sudden, I might look at the menu bar on the top, and instead of the time clock, I'll see a little bar of a million little pixels in all different colors in its place. Then later, I'll notice the Apple icon (or something else) is doing the same thing. When I try to Ctrl-tab (I believe that's the combo) to flip through different apps, the app menu icons that show up in the center of the monitor will be composed of just those pixels. Then, finally, if I try to quit out of an application I'm in or something, all of a sudden I'm facing the entire monitor this way.

I have an external 20" flatscreen monitor attached to this thing (I believe it's a Samsung) but looking at the actual monitor on the PB it appears it is not the external monitor doing this. I experience the same thing even without the external plugged in.

I replaced one of the original RAM chips so now I have the 728Mb or whatever amounts of RAM I have in there now. I haven't checked to see if it's gotten dislodged, although I don't think it would be a RAM issue.

Usually the time this happens is when I am playing World of Warcraft, but I've been playing it since March of this year and haven't had this problem until recently. [Part of the problem is that when I'm home, I'm almost always playing WoW, so it's kind of like saying I caught my cold from my gallon of milk in the fridge, because I always have milk in the fridge.]

I first noticed this when I had Firefox and WoW up simultaneously, after I'd started and quit a lot of different applications, INCLUDING a force quit on the Classic OS (I don't know of any elegant way to do this). HOWEVER, I've seen started rebooting my PB and only having WoW up, or just WoW and Safari (figuring it had a smaller footprint?), but it happened again last night.

In all honesty, I'm willing to live with having to restart my PB periodically, but (and you're going to roll your eyes here), this is a problem when I am playing the game and am in an "instance" where the survivability my character and those I am working with depend on my ability to maintain a solid 'net connection (in case you're curious, I play a priest and am often the primary healer, so my getting garbage on my monitor and not being able to see anything means I could personally cause my party to wipe).

I am planning on running the disk utility this weekend to see if it'll pick up anything, but I'm wondering what this might be? Could it be a problem with the wiring connecting the monitor portion of my PB to its guts?

Thank you very much for any insight you might be able to offer.
 
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