When I go to My Computer to access my memory stick (which shows up as Removable Disk [G:] ) I get a message that says "Please insert disk into drive G:". I can't format the memory stick (don't know if you are supposed to format a memory stick). When I click on Properties, it says 0 available space, 0 used space. I am running XP with SP2 on a Compaq. Please help!