Hi I deleted the gs.apple.com in host files to get round iphone errors. The wife's standard iphone 4, was playing up; I restored to new firmware as it is not JB and pretty standard. It threw a 1013 error and I could not get it to go any further than 1013. Ended up going to friendly neighbor which restored it. Has the removal of the gs.apple.com from the host file caused the error on a standard restore. many thanks, while scratching my head!