Dome Light Not turning on

I have 2003 cavalier and i got a boost tuesday nov 13 and everything seemed to be fine and i got in my car on thrusday and now i have no dome light, I replaced the bulb and checked the switch and the door switchs and everything seems to be fine and when i talked to friend they said that it could be a relay, unsure what else to try to do!!!!!!!

If you find that relay please post where you found it cause I have just the opposite problem. My dome light won't turn off. I hear the door relays click on and off and the light flickers on and off with the relays but one day it just stayed on. I had to unplug the dome light from the wiring harness and ultimately pulled the fuse cause it kept killin my battery. Now I have another problem with headlights but thats another post. I'm picking up a wiring diagram book for my 90 Cav this evening. They shouldn't be all that different. I'll let you know what I find, if anything.:banghead: