I just ordered new h1 bulbs for my foglights, i tried last night to remove the fog lights but was having a hard time

, i looked at the manual and all it says is to pop it out from the side with a screw driver and it should slide out. i tried but one corner would get stuck, as if it were welded on, the car is a 92 and im not sure if the fog lights were EVER replace or moved by previous owners!! im geting anxious to try out these 8500k hid bulbs from eurodezigns. any ideas!! thanks...