hate to trouble you again, but thank you so much for the speedy delivery/assembly. I received the laser today, and it worked fine (better than fine, I might add) until just 10 minutes ago it stopped lasing for no reason after about 30-40 seconds of being on. Changed battery to a fully charged one, still no sign of purple. The EZFocus was not involved this time, and does not seem to have anything to do with it. The usual/basic troubleshooting steps have been taken, to no success. Your thoughts? thanks, -cmak