Endless Stains on the K-5 Sensors! (and the Possible Root Cause?)

These days, the "Stains" reports of the K-5 now appear endlessly, see what this frustrated K-5 user in the Middle East complains, who is really pissed off:-http://forums.dpreview.com/forums/read.asp?forum=1036&message=37111740I do really feel for him, very very much indeed. Someone in the thread who've replied emphasizes that as long as Pentax honours a replacement under the warranty, it is "just