Hi, I'm working on Vista Home Premium on a Dell XPS laptop. When I insert a USB flash drive, it makes the usual 'ba bud' sound. However, it shows up in Computer as "Removable Disk". Properties shows 0 bytes used and 0 bytes free. It basically shows as unformatted. I know the USB drive is good because it works on another computer. Additionally, I tried 2 other USB drives and get the same result. If I plug in an external hard drive, that shows up fine. So the port is good. Thinking it may be a power problem, I tried a small 512 MB drive. No joy. I also tried using a powered hub. Still no joy. Note: One of the drives has a light that illuminates when it's powered. The light does illuminate. Another sign that the power is good. I tried formatting the 512 MB drive. It recognized the size and started formatting it as FAT32. When the green status bar got to the end, it said "Windows was unable to complete the format." I put that drive in another computer and can see that all the files were erased. I'm at a loss. Any suggestions?