It7805 driver required

Click start control panel administration tools computer management device manager scroll to sound video and game controllers you might see a yellow question / exclamation? ! mark or a red X Right click to reinstall drivers

if your computer came with a motherboard disk the drivers could be on it

or you might download slimdrivers

rather doing a driver hunt

http://download.cnet.com/slimdrivers-free/3000-18513_4-75279940.html

note: it will find all of your outdated drivers

this is a free driver solutions

which will automatically search for and find the correct driver

it might take some time being free

hope this helps