We have a HP Pavilion PC with the following equipment: CrystalPnp Audio System CODEC; Crystal Pnp Audio System Control Registers, Crystal Pnp Audio System MPU-401 Compatable; Gameport Joystick, Wave Device for Voice Modem. How can I find out the manufacturer(s). I need to download new drivers as mine are not "certified" and that is apparently causing problems with our software.