Are you sure SOLIDWORKS is defiantly using your graphics card and not the on board graphics?
You can force the application to use your graphics card through the graphics card control panel (RMB on the desktop to access this)
You could also try running the application in 'safe mode' through the Rx tool to see if it boots up ok.
Fairly sure about the graphics card. The cable to the monitor comes from the card itself, not the main motherboard connectors. There would be no way for the onboard graphics output to get to the monitor. Will try the other suggestion though and post back later - thanks.
After updating win 10.
I experienced the same problem.
I tried so hard but it did not improve.
I uninstalled SW and uploaded it again.
Update - uninstall SW and re-install solved the problem. Now working perfectly.
i am happy for you.