[ Video & Online Games ] Open Question : how do i fix my steam?

when i am on steam and i go to go on css it tells me "your video card does not appear in our data base.Consequently,you may or may not be able to the play game with sufficient stability or performance.We appreciate your help in assuring that we have sufficient information to address your video card and driver in the future.By clicking the upload details button you will help us track which video cards are currently missing from our data base" i click on it but it doesn't do anything.I don't know what to do.