hi all ive got a big problem i have an intel imac 24 that was working fine but it fel down but didnt break anyting it still power on very well the only problem i was geting is that it didnt want to boot into the macos it stuck on the gray apple screen for some times the restart and do it over and over.i try reinstall the mac os leopard after that it worked well without restarting.when i power it of the next day when i power it on again it did the same thing again i when to try and repair using the utility disk i try erasing the disk wich faild to then it says s.m.a.r.t status failing in hd property and i couldnt do anytin with it.ive open up the imac remove the hd and installed it in my pc running windows vista so now how can i format the hd to mac formats so when i insert it in my imac it will c it as good?pls help