Horizontal Line Noise - Canon 1DM2N

Hi There. I just bought the Canon 1DM2N about a month ago and I just started getting horizontal line noise at an ISO of 640. Has anyone else been having this issue too?

I read a press release regarding the same issues with the 5D and it was said that it was an inherent problem with the processor and nothing could be done with it at the moment.

My main concern is if it indeed is an inherent problem (at high ISO's, it becames apparent every once in a while) or if it should be sent in for repair or an exchange.

Thanks for your comments,
Byron

I had the same issue with some exposures on my old 1Ds. Like you, I also found some references saying this was a known issue and there was no fix. I have not noticed the same with the 5D though (then again I don't think I ever use it above ISO 200).

Guy

I have had a similar problem with my new 30D. Only it occurs even at iso 100 and all lenses and also shows posterization in high contrast areas such as along cloud/sky boundaries. I sent it for repair and when I got it back there was no improvement so it is "in the camera hospital" again. If it isn't fixed this time I will yell loudly for a replacement camera! Never had these problems with 20D or 1DMIIN

The problem at an ISO of 100 doesn't sound very promising at all. Yesterday, I got the problem at ISO400 for the first time.

I've had my 30D for about six months now and I had a batch of images suffering from this for the first time yesterday. These were taken at ISO 100 and the problem seemed to be only in the blue registers. It was a shame because these were good images otherwise.
Is this a sensor problem? Is it on its way out already?