So over the past two weeks I have had more than 13 lamps (mostly 1K FELs) go out on me. However whenever I go to replace them the envelope is still crystal clear and the filament is perfectly intact. When I replace a lamp it only takes a few days for it to also go bad. I'm not exactly sure what arcing is but I think we have that problem. (Someone care to explain to me?) I have attached pictures of these bad lamps. Is there anyway to fix the lamps??? and what should I do to the actual lights to stop it?