i am fixing up my girlfriends macbook, not 100% sure of model but its an older model, 1gb RAM core 2 duo etc. the hard drive went kaput bigtime and i had to re-format. she didnt have the original leopard disk that was shipped with the machine and to my knowledge you cant even buy leopard any more. i went to do a clean install of lion but because it only had 1gb of RAM it wasnt too keen and the machine wont accept my snow leopard disc that shipped with my 2011 imac. the only other thing i thought of was to remove the hard drive and put it in an enclosure and plug it into my imac and install snow leopard, then take it out and put it back into the macbook, thoughts? any other options?