if you look near the switch to turn the headlights on, there is a little wheel. this adjusts how bright those lights are. if this isn't the problem, i don't know how to fix it, sorry. hope you fix it soon! 
fezzer hit that on the money. if that doesnt work, check your fuse box under your steering wheel off to the left where your knee would sit....flip the cover off and look for acc lights i think.. it should be in your manuel you get with the car..