Hay Brian I did send my SB'900 into the Nikon Shop in Morton ILL and they have already told me what is wrong with it and are fixing it this week. Thank you for all your help and I should maybe have it back by the end of the week. I did blow the bulb also. They are lining some other things out on it , so it was kind of good to send it in after 4 yrs of working it. LOL It has been a great Speedlight for me except for the over heating that I didn't like, but have found the right way to use it & also have a SB-600 for backup >stayby in case LOL. The total cost is good too, so I'm very happy and can't wait to have it back in place here with me. Thans again for all your help and to this Nikon Site too. I would have been lost if not for this site help. Take care.