Hi Mary sounds like either a faulty USB connection (have you tried a different port or cable?) or possibly there's a setting in Energy saver that's causing the disruption I had the latter with my USB drives while running Snow Leopard. There's a setting in Energy Saver to put drives to sleep. Try toggling that setting. ---- Scott Strawbridge | Graphic Artist scotts1@xxxxxxx scott@xxxxxxxxxxxxxxxxxxxxxxx http://www.liquidphoenixdesign.com http://www.scottstrawbridge.com tel:(519) 474-2754 iChat/Skype/Twitter: scotts1 On 10-31-2011, at 2:56 PM, Mary Read wrote: > The disk was not ejected properly. If possible, always eject a disk before > unplugging it or turning it off