so last night i get in my car to go home. the headlights had been working perfectly previously in the night. but i got in and turned the light lever all the way up and the head lights didnt come on. the parking lights where on but no head lights. but my high beam still worked. but only when i held the lever myself. not when i depressed it to the back to keep it on without having to hold it. so today i popped the hood and the bulbs look fine, not burnt out or broken or anything. any ideas what it could be? im kind of low and cash and dont wanna shell out another $50 for bulbs but i think im gonna have to. please help!