Classic sign of incorrect graphics driver or bad card.
Check the Tools > Options > System Options >Performance > Use software OpenGL option is not enabled.
Yeah, that's a little bit nuts, aint it.
OK, so you have an issue related to Solidworks not calculating environmental reflection or ambient occlusion.Run an Rx and see what it says about your display adapter driver version. I'd check to make sure you using a certified driver. Solidworks uses hardware shaders and effects for a lot of UI elements. It appears that the plain white background is causing an OpengGL implementation issue.
Thanks. The OpenGL and updated the drive resolved this issue thanks again.