View > 100% is by default cmd-1 in Photoshop CS6, as far as I know, so maybe you need to elaborate on version, OS etc.
'fsck -f' comand
OS Version 10.8.3
machine - macbook pro 2.2ghz intel core i7
16 Gb ram
cmd-1 doesn't do anything either.
'fsck -f' is a built in mac scanning tool on every mac that allows you to boot into the system and check the health of your machine and fix any bugs.
Hi ... go to "edit>keyboard shortcuts" and unclick the "use legacy channel shortcuts" checkbox ...
the legacy shortcuts is already unselected
Hmm, then check your shortcuts from the same menu item and look at the "view" section.
I don't have any other idea ))
If this is the same issue as I have had, restarting the whole machine has been the only way to get keyboard shortcuts back. For example, the one that stops working most often is the Space Bar to Hand/Page mover in Photoshop and Indesign.