Where can I find the latest video card driver for my laptop and also an audio device that works?

Toshiba Satellite 5105-S901 laptop

Intel Pentium 4 Processor

NVIDIA GeForce4 440



I updated with Service Pack 2 which installed the YAMAHA AC-XG audio device. Although, now I have no sound and I don't think that this audio device is compatible with my laptop. Also, another program I have will not load because I need a different video driver. Anyone know where can I get this? Thanks!!!|||toshiba website will be your best bet use the following link this will take you to their support site http://www.csd.toshiba.com/cgi-bin/tais/…