USB memory keys on windows2003

[amoss24]

I am running a room containing 30 wise thin client terminals on a Windows 2003 server running terminal services.

When using a USB memory key on a terminal it takes a long time for the key to activate and become usable, but using usb floppy or cd drives the connection is instant and i dont have problems with any other ports on the terminals.

Does anyone else have this problem with slow usb keys, or know a fix to speed things up.

Note: if the memory key is not a fat file system, the key tends to get blanked when its plugged in.

thanks all

oh yes one more thing im using rdp 5.1, on the terminals with drive mapping