Is there a function in photoshop to "Enable or Disable" The Keyboard Shortcut Keys. Because sometimes my Keyboard Stops working and when I Close and re-open the application it works Perfectly. I have felt this problem many times not in a particular Machine but several time in Different machines so I am pretty sure its not my Keyboard's defect.
Not that I have tested this, but you can create new sets of shortcuts. Technically you could create a set that has all shortcuts deleted and flick that on and then back to the original.
Might give you the refresh you are after!