unresponsive
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Nikon confirms woes with D4 and D800, joins Canon in high-end doghouse
Okay Nikon owners, stop laughing at your 5D Mark III cronies for their leaky problem. That might be a drip in the pail next to your own worries -- namely, possible "lock-up", focus and viewfinder hitches on your D800 or D4. Nikon verified that a "small number" of units of both DSLRs can lock up and become unresponsive, but until there's a permanent patch you can prevent this by disabling both highlight and RGB histogram displays. The company also verified that a "run" of D800s is suffering from a viewfinder bug, although it has yet to confirm another emerging problem with autofocus in some units, which apparently requires a factory fix. So, if you've noticed any of this with your pricey new D800, or really pricey D4, your best bet might be to reach out to your Nikon repair center post-haste. And don't let the Canon guys see you. [Thanks, Thinh]
Mac OS X 10.6.7 supplemental update for 13" MacBook Air
Apple has released a "supplemental update" to OS X version 10.6.7 specifically for the 13" MacBook Air model released late last year. The update reportedly fixes an issue that made the devices "unresponsive when using iTunes," and it clocks in at a tiny 461 KB. As always, the updates are available via Software Update, so if you've got a newish MacBook Air, load up the app and check to see if you need to install it. Afterwards, you'll be able to use iTunes without issue among other fixes. [via MacUpdate]
iPhone 101: How to force quit an unresponsive app
We here at the TUAW headquarters rely pretty heavily on our iPhones when we're away from our desks. This is especially true for the lucky ones on the floor at Macworld 2010. Sometimes however, our little pocket computers go haywire and refuse to respond to our commands. To force quit an unresponsive app all you have to do is press and hold the Sleep/Wake button until you see the red slider. Normally, this is what you would do to power down your iPhone or iPod touch. In this case however, when the slider appears, release the sleep/wake button and then press and hold the Home button. If it works correctly, your iPhone will forcefully quit the unresponsive app and return you to your home screen. I have found this especially useful on the rare occasion that Mail begins to choke on my multi-thousand message inbox. Sometimes this simple kick in the pants is all that is needed and is a lot quicker than a hard reboot followed by the waiting required during boot up.
