based on my experience there some step you need to do...
1.download the driver from compaq support and center
2.install the driver
3.on my pc it's does not make any effects
4.choose device manager and try to update driver manually
5.you can find on your system(for me in c://)compaq create a folder renamed swsetup
6.inside this folder maybe you can find what you need...
it work's for me but maybe we had a different specification..
just trying to help