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Scroll arrows at both ends of scroll bars [10.1] System
OS 10.1 adds an option in the General prefs to have double-scroll arrows at the bottom of the scroll bar. Scott R. wrote in with a quick preferences hack to enable double-scroll arrows at BOTH ends of the scroll bars. If you'd like to enable this feature, simply start a terminal session and type:
defaults write "Apple Global Domain" AppleScrollBarVariant DoubleBoth
You then need to logout and login (or, perhaps, simply force quit the Finder) to see the effect ... but once you've done so, you should have double-scroll arrows at both ends of your scroll bars.

I'm not sure which combination of applications (Cocoa, Carbon, Java) this applies to, but it works for certain in the Finder and a couple of Carbon applications I quickly tested. To return to the normal mode, use:
defaults write "Apple Global Domain" AppleScrollBarVariant Single
(or you could just open the General pane in the System Prefs and check "At top and bottom") or
defaults write "Apple Global Domain" AppleScrollBarVariant DoubleMax
to put them together only at the bottom (again, this is equivalent to clicking "Together" in the General prefs panel for scroll arrows).
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Running Applets safely Internet
If you have to run an applet, and it crashes your browser (as most applets seem to do), you can sometimes work around it with the 'appletviewer' command.

Open up the Terminal. The appletviewer command takes the URL as an argumnet. For example:


...will run the chatroom, which didn't run in my browsers. It runs in it's own small window, which is nice.

[Editor: This situation should be greatly improved in 10.1, as the Java support in browsers has been greatly improved.]
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Easy screen captures [10.1] System
Use shift-command-3 (entire screen) and shift-command-4 (region) to take screenshots in OS X 10.1. The images are dropped on your desktop, saved in TIFF format, and they'll open in Preview when double-clicked.

SnapzProX offers more features for file formats, movie captures, and menu captures if you need those capabilities (and I do and I love the program ;-) -- but it's great to see the return of the easy-to-use built-in commands from Apple.
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Where to find attachments Apps
I was curious if anyone knows where the OS X Mail App keeps attachments/documents that you are working on when you open them from a mail message? I was working on a Word doc and saved consistently, but soon realized that it was just saving the open Word document to some ether land and not to an actual apparent location.. Is there any way to recover this document?

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Rearrange your menubar icons [10.1] Desktop
In OS X 10.1, there are a number of menubar widgets, including some or all of a clock, Airport indicator, sound control, monitor control, and battery life indicator. If you hold down the command key and drag on any of these widgets, you can place them in any order you wish on the right-hand side of the menubar.

For example, you may wish to put the monitor or sound widget in the corner, in order to make it easier to hit with the mouse on the fly.

Click here to see a brief movie, courtesy of Andrew Welch at Ambrosia.
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10.1 upgrade versus 10.04 add-ons System

i'm eagerly awaiting the new update released today...but had a moment of panic. i've spent the last few months configuring (and thoroughly enjoying) apache (with many public and private sites), mysql, php, a new ftp server, etc etc...and crossing my fingers that these will still work with the update.

does anyone know if i will i have to reinstall and reconfig these? granted this would be a great test of my new skills if i did have to...


[Editor's note: Anyone installed a 10.1 upgrade over a customized system? I'm planning on installing on a newly emptied partition and then re-adding my custom pieces one at a time. From what I've read, much has changed at the deepest levels of the OS with this upgrade, and this may be the safest course of action. Any other thoughts?]
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renice functional in 10.1 UNIX
Readers will appreciate that the 'renice' command [Editor: This command changes the default CPU allocation of currently running tasks] appears to be fully functional in 10.1. I started two instances of the client and then used 'top' to examine the CPU usage of each. Read the rest of the article if you'd like to see the results (and they're notably changed from what would be seen under 10.0.4!).
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Toast preview #1 expiration workaround Apps
Apparently the Toast preview release from Roxio had some sort of expiration date buried in the code - people are finding themselves suddenly unable to burn with Toast, as of sometime last weekend. From one of the various forums (I can't recall which one), the simple workaround is to set your clock backwards a week or so. Although this will mess up modification and creation dates on other files, the Toast Preview Release will be able to burn again.

Roxio's Toast beta site claims that Preview #2 is "coming soon", so this should be a short-lived workaround.
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Modify Internet Explorer's keyboard shortcuts Apps
Pierre Igot figured out how to modify Internet Explorer's menu shortcut keys, and wrote up a how-to in this thread on the MacFixIt forums.

Pierre's method involves modifying the Localized.rsrc file, which consists of binary data used by the application. Note that his method can be expanded to modify nearly any application by doing the same thing - editing the Localized.rsrc file for the application in question. Be careful, however, as these are binary files. They look like gibberish (for the most part) in your editor, and if you change the length of the file, it may not run when you're done. Work on a copy of the application, just to be safe!

If you'd like to modify IE's menu shortcuts, head over to MacFixIt for the scoop!

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Switch IP addresses remotely Network
Does anyone know of a way to change your IP address remotely? either through a shell script, Apple Script or a Perl Script? All I would want to do is log in (SSH, or a password protected web page) and run the script to toggle the Network 'Location' (my primary server went down today and my OS-X box is my backup server).

Or better yet does someone know of a script that will ping my primary server every few seconds, then if there is a non-response ping, run the above script.

[Editor's note: See the comments for the answer - 'scselect' is a Darwin-specific command-line utility to switch the current location!]

Panther proven!
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