Tonight I tried using the little flash unit that came with my camera. I installed it but it simply would not fire! I had just purchased the FL 600 r but did not know how to set it up but in desperation, I mounted it on the camera and got it to fire. I fired in delayed and strange ways but eventually I got it to fire in synch with my shutter and got some pictures that I would not otherwise could have taken. Needles to say, I was in a situation that did not allow me time to study the manual for the camera which is in the computer Please advise what might be the problem and what I should do to make it work. I did get in the settings and tried different things. Now it might be set all wrong so I would love to hear what settings to use as default for a starting point. Thanks in advance!