I have a portable PC with Windows 7 Professional. I tried this issue with PHPStorm 3.0.3 and 4.0.1.
I like to use my iPad as second screen, using the app AirDisplay.
When I drag the PHPStorm window to my iPad, the PHPStorm application turns red, within the window.
This does not happen with other applications like MS Outlook, Notepad++ and Google Chrome.
Did anyone try PHPStorm on a second screen?
Did you try it with AirDisplay?
Do you have any idea what could be going wrong?
Any help much appreciated!