Hi there, I using Compaq Presario CQ40-310AU Notebook which came installed with windows XP operating system. Just recently I had replaced the operating system with new windows 7. But there is a problem with it. The driver cd I am having with me is based on Windows XP. I had tried running the setup of that Windows XP on the laptop but it does not look to be working well. I want to use and test this on the OS and I tired also but it is not accepting anything. Can anyone help.