You can find Acer's drivers here.
You will have to go through 3 screens:
1) Product Family:Notebooks
2) Product Line: Aspire
3) Product Model: 6935G
Your Vista and Win7 Drivers will appear. Download and install them.
I have tried this and once installed i get the following error msg: sorry!unsupported operating system....
they do not work has anyone had any luck with the empowering software for the acer aspire 6935G ?