Hi all, I've got a brand new S4 zoom that after only 10 hours blew the HPL 575 lamp. There was a burning electrical smell when it went. The glass on the lamp is perfect except for a faint milky white ring near the base and what looks like a tiny hairline scratch on the glass... no burned fingerprints!! The filament looks perfect. The only real evidence of damage to the lamp are burn marks on one of the two power pins. My guess is that I've got a bad socket. What do you think?