I've had the early 2008 2.4 model since march, since then it's exhibited sometimes washed out picture (for like a minute or so before reverting to normal colors -- happened a few times but not recently), it did the LED column backlight thing once after disconnecting the ac (but went away when plugging the ac adpater back in), I've had some text distortion with safari scrolling but it hasn't happened recently, and recently, twice i've had the machine now lock up (can still hear iTunes), but the screen won't come back on so I have to yank the battery and do a reset to get video back up on the screen. should I take it in or wait until its 100% dead? What do you think? Do they have to reproduce problems too? Because it happens at the most random times after extended use.