AOTech

Under Vista Ultimate, when I insert a flash drive, the OS does not recognize
it as a USB Mass storage device, and prompts for drivers.
Here are some details:
1. This system was upgraded from XP
2. A Sandisk Cruzer Mini 1GB flash drive was installed prior to the upgrade
(this device is the only thumbdrive that works)
3. A USB card reader is present (system allocates 4 removable disks) and
working
4. I've verified the Sandisk drive is working on another system
5. I also get the same results with an older 128 MB flash drive