Sagem states that in order to optimise PAL performance on its Axium sets it had to compromise their NTSC capability. If you believe their statement, other sets that manage to handle both standards without any jerkingness aren't optimised for either standards and are therefore of lesser quality. My guess is that Sagem/Optoma simply cocked up in this particular aspect of these sets design. Ok, it does happen, just fix the design, submit it to manufacturing and arrange for all existing sets to be rectified. Yes, it's going to cost Sagem but its the only option open to any reputable manufacturer.