I just plugged my card into the XD USB slot on my HP desktop. Nothing happens. Went to Device Mgr and got this message.
Windows cannot use this hardware device because it has been prepared for "safe removal", but it has not been removed from the computer. (Code 47)
To fix this problem, unplug this device from your computer and then plug it in again.
Tried that, no luck. Plugged it into my XP computer and got it to work. Back to Vista, no luck.