Slide a kitchen knife in between the glass lens and the mount and twist it and the lens will pop off. Remember it's glass. For some reason those type halogen bulbs wiggle around in transit. Be sure not to handle the bulbs with your fingers, or if you do, wipe them off with rubbing alcohol. I'll bet there's nothing the matter with your bulbs that a little wiggling around won't fix.
2014 Jayco Jay Flight 33RLDS travel trailer, 2005 Chevy 2500 Duramax diesel with 60 gallon auxilary bed mounted fuel tank, Honda EU3000 generator.