Hello I have a VA-503+ mainboard (win2k, AMD-K6 500 MHz). I wanted to install driver so I could use a USB connector. I downloaded program usbf108 and tried to install it. After all required steps 1. double click at setup icon 2. click "next" 3. click next with chosen "install filter driver": first I was waiting for many minutes and nothing happened - when I tried to shut down this application there appeared a dialog box which said that installation was not complete - but it took so long I decided to close it nevertheless. When I tried to install it again, after all these steps another dialog box appeared: "can't change original INF file". Then I uninstalled this program 1. double click at setup icon 2. click "next" 3 click next with chosen "uninstall filter driver", restarted my computer and tried to install program again. Then I saw familiar dialog box which said "can't change original INF file". What should I do? ps: (what is a usb riser?)