Still can't get audio drivers sorted

And I just tried to re-install my MMC/SM/CF etc card reader (plug in USB type) and installation said succesfull, but the extra drive location icons don't show up in "MY COMPUTER" like they should????????? USB ports appear to be working fine as the lights come on and the card reader reads the card I put into it, but I can't access any cards (or the built in flash memory) as I got no drive letter icons to click open