More information is needed.
What version of Solidworks are you using?
What model of Intel card are you using?
What OS are you using?
Check here for your model of graphics card.
Also, please read this Some very important steps if you are a NEW FORUM USER....
You may also want to use the search bar (magnifying glass) at the top right corner of the home screen as there are numerous posts within the forum about Realview, related graphics issues and how to activate the "Realview Hack" with some graphics cards...........