Ran into a glich (pun intended) that prevents switching of movement speed (probably caused in no small part to the time foward object). i was ok with just sprinting everywhere, but after starting the quest "shipping disaster", i was returned to walking speed and unable to change it. this happened in the most recent version. fixes?
Edit: after my second 24 hour run through, i figured out that the cause was the vacation man. no idea why, but he prevents you from changing run speed on easy. since actual scenes with characters are done at the vaction place, this glitch kinda ruins the game.