when I said clean out . I should of said take side cover off and blow out the computer with compressed air. making sure you unplug computer first. go to hp support site and see if they have an updated driver. or go to the video card manufacture and see if they have an updated driver for the card if it separate from the motherboard.
look in device manager and see what type of video card you have is it NVidia or amd then you know what driver to download and install if this is your computer in the link.
Let me ask you this- (I am scared to do this.) if it screws up my PC, I could do the system restore?- but if it screws up the video, I wouldn't be able to see the screen to do the rollback. Does that make sense?