Dear Aunt TUAW: Help me adjust my mouse tracking on the fly

"Unfortunately, the problem with auto-scaling the mouse lies in detecting when the cursor has changed between screens."

Dear Auntie, if you're in the mind to do some hacking, you would think you could take some code from 'synergy' to roll your own detection when the cursor is on monitor N...

Thanks for the tips gang, but while they are great for setting up a new system they are less than fun when you have dozens of video content items to move Oh well if wishes were fishes we would all cast nets

I don't have this problem at all. My mouse cursor moves at exactly the same speed on my 13" (1280x800) MB screen and my 22" (1920x1080) external, both running at the same time.

It also looks like the pixel density may be very, very close on both of them. I just measured my cursor with a ruler, and it came out the same exact size on both monitors, so maybe I'm just lucky.

I don't have a very large secondary monitor to test this, but try USB Overdrive (USBoverdrive.com). It is a general purpose mouse/joystick driver, and I've been using it for years because Apple's mouse control panel settings were never responsive enough. USB Overdrive has controls for both Speed and Acceleration (what I think some manufacturers call "ballistics"). You can try before you buy, so an experiment won't hurt.

Razer makes gaming mice that are compatible with Macs now (not all of them though, check to make sure the mouse is compatible before you buy). With the "driver" installed, you can (for example) map the middle mouse button to change the mouse's sensitivity on the fly when you hold the button down and scroll up or down to adjust. It's perfect for gamers, but I have a hunch that it will help your situation too.

Here's a screenshot of the control panel for my mouse, the Razer DeathAdder. http://grab.by/aOBH

I have a question for Aunt TUAW about iTunes and spreading your iTunes stuff across several drives. In iTunes help you can find this (Appended below but what if you want it all in one lib but want say the movies and TV content on an external drive a feature I would like is a simple Drag select the content you want to move and select the destination drive and have an option to delete the original on the MBP internal drive... the info below is complex and many steps are needed to get this simple thing done (could it be done in Apple Script?
Cheers
Windy

Use multiple iTunes libraries
You can have more than one iTunes library. You might want multiple libraries so that you could, for example, have a library of holiday music that wouldn’t appear in your iTunes DJ mix the rest of the year. Or you could use separate libraries to keep your music on your computer and your movies on an external hard disk.

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To create or use a different iTunes library:
If iTunes is open, quit it.

Hold down the Option key while you open iTunes.

In the window that appears, do one of the following:

To create a new library, click Create Library.

To choose a different library, click Choose Library.

In each library you create, you can select different preferences for the iTunes Media folder, the types of content that are displayed, parental settings, and the library name. To set preferences for a library, choose iTunes > Preferences while using the library.

You can name your iTunes library (the folder containing your iTunes content and the iTunes Library file) whatever you like.

Tip: For best results, if you create additional iTunes libraries, don’t name the new libraries “iTunes” or “iTunes Music.” Make sure each iTunes library has its own unique name so you’ll know which is which.