@ silverblade,

so, are you saying, that you can actually see the objects you're working on in the viewports? 

The only thing I can see in my work space is a wireframe at the best or just ome squares if the scene gets just a bit heavier.

I just don't know if I want to go to the expense of buying another operating system not knowing if it really improves on the issue.

But anyway I appreciate any information helpful to the subject,

Olav