Hi all. My backup Video Projector which is an ooooolllllllddddd Sharp XG-E3500U finally game me a lamp warning indicator today after (ahem) 10 years of use. On one lamp. No joke. So, since I've never replaced the lamp on this baby I got out the manual, which of course says take it to a Sharp authorized dealer. But the lamp is just a 370W Metal Halide, it looks like about as difficult as replacing any other metal halide lamp. The rub is that it resides in a big cage. When I do a net search for a replacement lamp, I get the cage version and the lamp only. Do I need to replace the cage too? The lamp hasn't failed and blown or anything. Yet. This is my old projector and I only use it as a backup now anyway. Any clues for the clueless?