Just upgraded ffrom 2009 sp 4 to 2011 sp1 (never got a chance to upgrade to 2010). Was wandering if anyone else is having the same problem as I am when I open up or design a part in solid with lines view. The view looks transparent as I can see all the lines on the back side of the part in the view. Gets a little confusing lookinhg at it.  When switch to solid without lines it looks fine.  Is there a setting I am missing that I tom update? I am using a Nvidia 370 graphics card with latest drivers. Any diagnostics shows things are running alright. the workstation is a HP x4600.  Any help is welcome.