Do you have a situation where all your objects in paper space (layout tab) are white? Your objects are on layers with different colors and they're all bylayer. The problem lies within your current page setup.
Set your layout tab current. Right Click on the tab itself and press Page Setup Manager...
This blog contains historic posts about AutoCAD and will not be updated. I've transitioned from CAD Manager at a private CIvil Engineering firm to an IT Management consulting firm. If you find any posts of value please comment. As long as it helps someone I'll leave this be. Good luck Autodeskians.