I have recently acquired two Chisholm Aurora projectors and I am having a hard getting information on them. First, is anyone aware of where i can find a pdf / online manual for this? Second, on the video option menu I am shown lamp life percentage. Is this the amount of life the bulb has left, or is it how much life has been spent? Third, one of me units will not even power on, where should I start in my search for the problem. Lastly, is anyone aware of how much these sell for these days? I can only find the price of the lamps. thanks Mark C