Recently I was trying to paste a screenshot created using print screen into Adobe Photoshop CS4 on Windows XP but nothing would happen. I use print screen to create screenshots on a regular basis and then paste the results into Photoshop so I can describe how to resolve basic issues on a computer to people. I have never had a problem until this time so I figured it must be a configuration setting or something similar causing the issue.
After reviewing the Photoshop preferences I could not find any configuration options that would be causing the problem. After testing other applications I noticed that taking a screenshot and pasting into these other image applications also was not working right so the issue was not related specifically to Photoshop.
After reviewing every action that had occurred on the computer since the last successful copy/paste of a screenshot into Photoshop I limited down the items that could have been causing the problem. I finally figured out that an application I had installed to modify some things on my friends new Palm Pre was the item causing the problem. The application was the Sun xVM VirtualBox application that allowed me to install the Palm SDK on Windows XP. To resolve the problem I simply removed the Palm SDK and Sun xVM VirtualBox from the computer and pasting screenshots into Photoshop started working again. There is definitely a way to make them work together however since I only needed those applications to modify my friends Palm Pre I just removed them for now.