I've found the driver you need to install here; http://www.dell.com/support/drivers/us/en/19/Product/latitude-e4300
You want to expand the section that says Video and download the Intel® Driver listed there. Run that and you should be good to go as far as having your driver updated.
Let me know how it goes!
Thank you SOOO MUCHHH!!!! It's back to the original way again. I didn't know Dell had driver downloads.