I've got this odd bug right now where I can't paste screenshots in Photoshop. I can still paste in them in Paint no problem. I can also paste copied images (right click - copy image) into Photoshop. Just no screen captures. Anybody else ever have this problem?
I've had this problem occur a couple of time in the past. It always seems to show up and then go away. Although i remember a few times when it would happen i would just restart my computer a few times or so and i would solve the problem temporarily.
Hope that helps. If you find a better fix for this please let me know.