Hi guys, Just got myself a Vertex 4 on referral from a local computer shop. (maybe not so smart) Anyway I am not able to install Snow leopard on it (which the MBP was originally shipped with) I have tried: - Retail DVD Holding down C/alt - 8GB USB stick with disk image of SL loaded by SuperDuper - 8GB USB stick with disk image of SL loaded with Disk utility - I have tried Internet (wifi/ethernet) Recovery of Mountain lion Nothing has worked so far. Anybody see something that I messed up, would love to get this to work. Background info on my MBP: Mid 2010 13'' 2.4ghz intel 2 core duo. Only upgrade I have done so far is Ram to 8gb.