print screen - Setting hotkey to PrintScreen in Jing

I am configuring Jing's preferences.

I'd like to set the Capture hotkey to the PrintScreen key. However, when I set the focus on the Capture hotkey box and hit PrintScreen, nothing happens. However, if I do CTRL+PrintScreen it works correctly. Is there a way to set the Hotkey to only Printscreen?

Answer

Is there another (TechSmith) program installed that uses PrintScreen as the hotkey? (Such as SnagIt or Camtasia (trials)) Jing doesn't allow you to set it if another program is known to use it.