so after a file system crash, i've reinstalled windows xp sp2 and now my none of my usb ports work. I've tried various drivers, I've tried uninstalling the drivers, I've tried reinstalling windows again, I've tried downloading all of the available updates through "Windows Update", I've tried disabling/enabling usb support through BIOS. It seems that I've tried everything I am now seriously desperate and I need my usb to function, because I need my printer and other hardware... Any advice would be truly appreciatted. Thank you! By the way, my motherboard is DFI AD77 based on VIA KT400 chipset if it helps...