Hi and thanks for the forum. I picked up a mint xbox in a charity shop in the box with a receipt from Amazon. Basically unused and mint. Powered her up and there were no saves or evidence of any usage. However,the unit will not play some games which I know work fine on another unit. So I took the cover off (no longer mint alas) and inside it was brand new,no dust,nothing,not even a dead spider. So I cleaned the laser,which was fine,and reassembled. However,it made no difference whatsoever,still won't recognise the games,some disks are fine though. I want to mod it and I've done a 360 in the past and I'm aware that swapping out drives isn't straight forward. Is this the case on the old xbox and what would be the best thing to do given that I do need to open her up again ? Many thanks in advance.