All my keyboard shortcuts are suddenly set to ⌘+≠. I tried resetting to application defaults and manually changing the shortcuts back to normal, but even after clicking accept, all my keyboard shortcuts are ⌘+≠. I'm running Mac OSX Mavericks. Is there any workaround?
It sounds like something has gone a little wrong with your OS. Did you install something recently? Have you tried rebooting your machine?
You absolutely should be able to click Edit > Keyboard Shortcuts and in the Keyboards and Shortcuts menu, under Set, choose Photoshop Defaults to restore your settings back to the originals. If that isn't working, then there's something very suspicious going on at the OS level. Would you be interested in doing a web-hosted screenshare to troubleshoot your problem?