I found the link I was looking for. Try this fix:
http://lastplaceonthe.net/fix-device-isnt-eligible-requested-build/
On Oct 12, 2011, at 5:35 PM, Jerry Jankura wrote:Hi, Folks:I get one dialog box that says "Preparing …."Then one that says "Backing up iPad" (this seems to take forever)After a while, iTunes shows "Extracting Software" message in info areaFinally I get a dialog box "The iPad "iPad" could not be restored. This device isn't eligible for the requested build."
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MARKETPLACE
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