First post, and I've exhausted Google. This is my last resort before I give up on this thing. I'm kind of a Mac newb. My only other one is an intel blackbook that I bought on ebay super cheap. My friend bought this g5 years ago and never used it, so he just gave it to me awhile ago. All the books that came with it said it was running on Panther, but the system profiler says it's Jaguar. I'm trying to get it to run Leopard, but don't want to pay a gazillion dollars for Leopard. So I download an iso and it seems to be perfectly fine. I don't have a dvd to burn the iso on, so I'm trying to use an 8gb flash drive or my tb usb hd. But I can't get the g5 to boot from either one. I've tried formatting these things a hundred different ways and can't figure this out. I tried this tip and got nothing. Please help. My boyfriend is not going to put up with me having this huge computer taking up space in our tiny room much longer if it isn't going to work.