HP Vectra NT4.0 BSOD Troubles

We have 750 clients that are HP Vectra VL400 series boxes. The hardware and NT4.0 OS load is proprietary and we are having all kinds of problems with Blue Screens of Death, some of which have been tracked to bad HP drivers (Sound Driver v4.3x). Wefound the fix to the sound driver BSOD is in updating all 750 PC’s sound drivers to v4.5x or 4.8x from the 4.3x driver. This did not fix all of our problems however. Does anyone know other incompatabilites or bad drivers that might be causing someof the remaining BSOD screens. ALL RESPONSES WILL BE APRECIATED.

Dan Johnson