Lower Left Screen Darker than rest, How to go about repair under warranty?

Well my lower left screen is darker than the rest of my screen on my 12" powerbook g4. My warranty is good for another 88 days but my problem is that sometimes the darkness goes away - and I'm worried that if I send it in for repair that the darkness won't be showing up and they'll just send it back to me. Is there anything I can do about this? Advice?

Welcome to Apple Discussions, Kris.
Many PowerBook screens can have some form of uneven illumination - but they will normally clear and work 'normally' after it has warmed up. How long does the uneven illumination stay? Unless the problem is evident most of the time, it is quite possible that the screen will be deemed to be within spec. My own experience with the problem, overall, is that it does not get better with time - it either stays the same or gets worse.
If you do have it inspected (either by an Apple Authorised Service Provider or by AppleCare) then you can prepare it by doing the following:
1. set the brightness to half
2. set the desktop background to Solid White in "Desktop & Screen Saver" within System Preferences
NB. Solid White is just to the right of the last colour, Solid Mint.
15" 1.25GHz/12" 1GHz PBs, 2xPPC Mac minis, 12" iBook G4, Mac OS X (10.4.6) Cube, 2xTAMs, iPods 2G/4G, iPs, AEBS, AX

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Lower Left Screen Darker than rest, How to go about repair under warranty?

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