I looked at your photo in your gallery after reading the other thread, and it is intolerable. I would definitely return that camera.
Since the time that I posted my original reply to this thread I have developed some dust issues also. I put my camera on a tripod with the sensor facing down, raised the mirror and used a Giottis large blower. I did this twice and was unable to remove a few of the suspects.
As much as I hate to say this, this could be a problem. Mine isn't any where near as bad as yours, but still, it's a $2,100.00 camera