In Photoshop CS6, the default behavior of depressing the spacebar as a shortcut for the Hand tool was working as expected, then stopped for no apparent reason. I have rebooted, closed browsers, shut down all other applications and deleted preferences and the problem persists. The spacebar works properly elsewhere, including Photoshop CS4.
Is there a keyboard shortcut setting I'm missing (I've checked Edit -> Keyboard Shortcuts and can find nothing for the spacebar, and can not add it to the Hand tool).
This is on OSX Lion 10.7.4
Best Answer
I know this is an old thread, but I found it when Googling for the same issue, so I thought I would answer.
According to this thread on Adobe's forums, certain browsers or possibly specific browser extensions, such as 1Password or Anesidora, seem to foul up CS5/6's spacebar shortcut.
The solution seems to be simply to quit Safari / Chrome / Firefox and launch them again. Might need to quit/launch Photoshop too.
Worked for me with Chrome, but there's quite a few variables in the problems reported, so there doesn't seem to be a silver bullet.