I tried looking for something that would help me out with search, tried most of the suggested things, but I couldn't find anything that fixed my particular problem. I recently went out and bought a 4GB sandisk cruzer micro that is U3 smart. I have never used a sandisk product, let alone this U3 program. When ever I put the flash drive into one of my ports, a window pops up for the U3 program and starts an initializing process and once it reaches a certain point in the initializing process, my computer locks up and i have to shutdown my computer and remove the drive. I've tried using it in another computer and it works fine. Can anyone help me out with my canundrum?