I think it is pretty amazing that Gmail is trying to solve real life problems like this. And it actually works. I use "Undo Send" regularly, because my brain seems to be wired to spot simple typing errors only when I press "Send". I activated "Wrong Bob" earlier today, and tested it on some combinations of addresses and it seems to work just as advertised. Good stuff.
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Here's the command, works on both Leopard and Snow Leopard:
/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -kill -r -domain local -domain system -domain user /
(It's one long command, not multiple separate lines)
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On Mac OS X Snow Leopard, issues with Google Gears prevent YouTube from loading the Load Screen. This means you cannot upload videos.
To work around, move /Library/Internet Plug-Ins/Gears.plugin to the Disabled Plug-Ins folder. Single file upload will work again.
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Haven't tried it yet (can't afford to mess up my sync settings right now), but important enough to share. Stuff like this makes me feel sorry for the excellent Nuevasync, I fear they will become obsolete.
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