iTunes 10.4.0.80 backup problems with iPhone

you da bomb. thanks.

Huray, I follow instruction from "stevenfromoregon" and succesfully fix the problem. After messing around my notebook and ipad for almost 2 weeks, the hazzle has come to the end.

Please note that I also use the latest iTune version, 10.4.1.10 with iPad 4.3.5

Job done. Clean unsinstall and reinstall did it for me. I think the Apple Computer folder is corrupted with the new version of itunes.

I would also like to report succes but with an alternative ... sort of connected solution : if you are scared of losing data by uninstalling everything from Apple from your computer, you cand do what I did : install a fresh iTunes 10.5 on another computer (preferrably that did not see iTunes so far), follow the instructions from thisarticle for copying everything to the new computer, and then connect the iShit to this computer and BANG !! all backup, syncs ... updates, transfer purchases work like charm. Then on the old computer do what u think necessary (uninstall, format, etc) and then do the moving process backwords. Thank you everyone for your posts and have a good Hollyday.