Rolling Shutter with Sony NX5?

Have any of the "early adapters" of the new Sony NX5 encountered any "rolling shutter" artifacts with the camera? I shoot "red carpets" and would like to get a non tape camera, but they all seem to be CMOS with the rolling and "half frame" artifacts when a flash goes off towards the lens. I tried the camera at NAB and the sensitivity and lack of noise with the gain seemed quite good, better than the Panasonics. Has anyone tried the 24p with the camera? How does it look?