I have been using my S2 connected to my mac via firewire, most of the time it works fine controlling the camera on the computer. however I had serious problems today as the computer lost the camera connection after every few shots. switching the camera off then on again allowed me to re-establish connection. I have had this problem before and it seems to happen when one of the studio lights (hensel 1000 expert) is in close proximity to the camera body IE inside 2 meters, could it be some sort of Electro-magnetic pulse when the flash is triggered, anybody got any ideas. I have also experienced a similar effect in that the camera fails to record an image when in normal (to CF) mode.
PS i have swapped all cables to eliminate them.