hi guys i am new to this and i know that snow leopard won't work i have tried and failed the only problem i had was graphics leo4all failed i don't think i checked everything right i have a Nvidia Geforce 6800 Xt 256mb can u tell me if i should install tiger or leopard on my system i'm fine with either as long as i have graphics finally working i have been looking around and no one has been able to get working and i am a noob at this stuff so a video on editing texts or something would be really nice thanks