I am primarily a Windows 7 user and prefer usually multiple monitors while at work. However, I also work with a Mac Book Pro. While I usually never used the MBP in a multi-monitor setup, I have started doing it now.
One of the problems I have faced with both Windows 7 and Mac OS X in a multi-monitor setup is that the orientation of the monitor is usually left to right by default and this is a pain when you are connecting a laptop to an external monitor and want to move your mouse between monitors.
I had written a post to change dual monitor position for Windows 7 earlier, if you are a Mac OS X user, you can follow the instructions below to do it on a Mac as well.
Step 1: Open Finder and open up the “System Preferences” from under “Applications”
Step 2: Click on the “Display” option under in the System Preferences window. This will pop up the display options window on all the multi-monitor.
Step 3: Now on the main monitor, click on the “Arrangement” tab and you will see the monitors you have attached to the Mac. Using this screen you can drag and drop the monitor as per your orientation.
That’s it. You can now move your mouse across monitors the way you have set the orientations of the monitor.