Sorry to hear of your problem. My M22's are just about perfect when it comes to imaging. When I am sitting in the sweet spot they just can't be beat. I even ran the ultimate test and had my wife listen to a CD in steroe mode. She thought I was fooling around and had somehow turned on the center channel speaker. She actually had to walk up and put her ear on the center speaker to verify that the sound coming from the center was not the center channel, but in fact perfect imaging.

Keep trying. It's the little things that make the difference.