silent install of video driver

I am needing to do a silent install of a video driver to remote locations all over the country. This installer is installshield. I am using /s (and have tried /SMS), there is a problem however.

The driver installs all most all the way. The problem is that after the screen goes blank and comes back up, that the "new hardware found" dialogue pops up. The installation will not finish until this box is closed. I have tried using /r to generate a keypress file, but that only handles the msi installer and not other windows. I dont' understand!!!!!

The only solution I can think of is to write an application that detects that window and presses the cancel button, which is totally a cheesy way to do it.

Does anyone have any ideas about how to approach this?

thx