So I have a Lenovo 80 GB HDD and I've plugged it into my Mac before and it has mounted. When it did that, I got everything off of the HDD and all was well. Now, when I try mount it again it says it is unmountable and then when I try to erase it my computer freezes. I'm currently on a 24 inch 2.4 GHz 3.0 GB mid 2007 iMac running Leopard. Any suggestions..,please??? (P.s. An idea that I had if anyone could fix it, although they might be unable to explain how, could use screen sharing in leopard...just a thought.) Thanks for your help.