I'm hoping this is my ignorance and not my camera. I have a D50 that I have been using for studio shots with 2 Alien Bees. Never a problem. My camera is linked to the lights with a cord and a Wein hot shoe flash trigger. I tried the same setup with my new D80 and I either get a weird half black- half underexposed picture or sometimes it looks as if the flash didn't go off at all (but it is going off). I've tried changing shutter speed, using the flash command mode, changing the sync speed. I shoot in manual mode - usually F8 and 1/500. Any ideas or do I send it back?