I have followed your advice and installed both cards.both seemed to install with no problem but when i plug anything into the new usb card it tells me usb device not recognized. one of the usb devices installed has malfunctioned and windows does not recognize it.but if i plug it into the usb port already installed on my pc it works ok.i have had a look in device manager and it informs me everything is working ok.there were no drivers with the card would this be correct?any ideas?thanks