I've bought 8 months ago external hard drive Seagate FreeAgent 1TB (USB 2.0 7200 RPM 32MB cache), till last week disk was plugged in to pc and everything was great. Now its plugged to mac and the problem is, the hard drive all the time going to sleep after minute or two. I've turned off sleeping disk in system pref., also i used command sudo pmset -a disk sleep 0. App from seagate is a piece of **** I've made full format from ntfs to mac hfs. Nothing helped! Is there any solution to resolve my problem?