Busted pins?

I think my pin 8 and 2 are busted. I hooked up a buzzer to pin 8, it worked for a while but then it stopped. Tried hooking it up to another pin and it worked there. Setting the pin to output and powering a led with it did not work (did digitalWrite (8, HIGH) ). The same happened to pin 2 except it controlled a servo.


I'm supposed to connect a capacitor and a resistor? I just wired the buzzer to the pin because the SIK guide from sparkfun does that in one of the circuits.