Yes, it is very awesome having a sony rep posting regularly!

I think this problem just happened to me. I was using a rental EX-3 camera and saw a rolling happen in the viewfinder and then disappear. Shooting outside for a live event. Ruined a couple of shots. Came back searched the forum and find this thread. The camera was in Auto for Reduce Flicker which is kind of a joke since it created more problems than it fixed n this case. This is a very annoying bug has there been any firmware upgrade or solution from Sony as it is not clear how many people I would have to teach to make sure the Reduce Flicker menu setting should be checked before shooting?

Well I did point out right at the beginning that this was a flicker reduction issue, Yet it took Juan (thanks for your input Juan, it is appreciated) to get people to take notice.

I'm not sure but I think on the EX1 the factory default has been changed in the firmware. Certainly on all early cameras it was set to auto but I think the latest firmware has it set to off. This could explain the comment that sony have a "fix".

Whenever I do my EX presentations this is one of the key comments I make about setting the camera up. Switch it to off, leave it off. If you are shooting at say 50i/25P in a 60Hz country use the regular shutter set to 1/60th ( or 1/50th in 50hz countries). It's more controllable and won't give the strange flicker problems that the auto setting can.