In case you haven't done it already I would pull the bulb out and put it back it in order to reseat it. Then reset the counter again. It doesn't seem like a ballast problem since it did fire up initially and ran for four hours...maybe a firmware problem where it's not retaining the reset value. Maybe someone else has an answer.
By the way, your video of the problem was an ingenious way to allow people to see what you are experiencing. Maybe it will start a trend.
Edit: You should check that your filter is clean and not restricting the airflow that cools the projector. Check page 22 (Table 11) in your user guide for the blinking light sequence.
[Edited by Crispin on Dec 23, 2006 at 7:41 AM]
My first front projector - a Kloss Novabeam 100 (1986).