I have a Viewsonic Ultrabrite A90f+ monitor. When I installed Vista the only
driver it could find was generic pnp driver, I downloaded the most up to
date driver from the manufacturer, however it does not show. Although my ATI
Catalyst says the drivers are installed. Now somehow the generic driver has
been unistalled so that there is no way to change the refresh rate, which is
grayed out at 60 hz.



Does anyone know how I can reinstall a driver for my monitor? I cannot click
anything in Display settings that will let me, or in device manager.