At such low hours on the bulb you might want to consider exchanging the projector/bulb if you can. If that's not an option I think others have had success switching the projector over to high for a few hours and then switching it back to low. something about burning off the crud on the bulb/filament...could be way off on the actual cause, but I'm pretty sure that's one solution. I experienced a similar issue and switching to high for 10 hours did the trick. Others who have had this problem say it will only get worse and your bulb will soon die/explode. Hope yours is the former.