Proper place is the photoshop forum.
You could try and replace the preference file and see if thats the culprit. On windows hold down ctrl, alt, and shift key at photoshop's bootup. I don't know the Mac's equivalent. You can also search for the preference file itself and delete or move to a safe location and let photoshop recreate the file. By moving the file, you can always put it back, if your not sure whats happening.