i have a u3 thumbdrive and it works on every computer i try it in except my computer. im not sure exactly what the problem is u3 drives make a virtual cd drive when you plug them in and i have virtual drives on my computer set up with demeon tools and achochal 120% so im thinking that minght be the problem on my computer i cant even read the thumbdrive it shows the drive letter but it says that there is nothing on iteven though there is i have tried other non u3 thumb drives and they work fine please help.