Control problem

[Alaw.12]

Few days ago I tried to change the controls to my preference. It worked but the game display isn't changed, so command key and key displayed didn't matched and it's bugging me. But that it's not the problem; I then changed the control to default to realise I can't neither sprint and roll. I've checked that I don't have the dragon key equipped and I've tried the sprint  toggle on/off and even change the command key of sprint/roll but so far no luck. What should I do? re-install the game?