United States v. Kuchinski, ___ F.3d ___ (9th Cir. Nov. 27, 2006) (conviction for receipt and possession of child pornography is affirmed over claims of error regarding defendant's plea agreement and double jeopardy, but his sentence is vacated as he was sentenced in error when child pornography images in his cache files, which he neither controlled nor even knew the existence of, were used to calculate his Guideline range).
http://caselaw.lp.findlaw.com/data2/circs/9th/0530607p.pdf