We purchased six small 12v bulbs today from NAPA. The old twist in kind.<br/><br/>We can get them to work in the Living Room lamps of our 1999 40ft U320<br/><br/>But cannot get them to work in the lamps next to the bed. THAT problem is not a blown fuse.<br/><br/>They are ALL very difficult to twist into place.<br/><br/>Any ideas as to what's going on?<br/><br/>best, paul<br/><br/>