A little over a year ago Yahoo started rolling out the beta version of its new Mail service. Now the beta tag is gone and Yahoo has moved everyone to the new layout. If you preferred the old version, Techdows found a trick to get it back using, of all things, your display settings.Temporarily setting your screen resolution to 800 by 600 which causes the new Yahoo Mail to not display properly. When you try to load Yahoo Mail with your display set to 800 by 600 you'll receive the message in the screenshot above. Click on Return to a previous version of Yahoo Mail and you'll be downgraded back to Yahoo Mail Classic. Then you can reset your display settings to your normal resolution and go about your business.