I'm having a problem with the "show last render in back" option.

After loading my scene I make sure this is checked along with the "show only selected objects" option.  Then I render the scene and everything is fine.  Next I make a few changes/additions to the scene and render it again.  The new scene now displays in the main camera view.  However, once I attempt to do anything else to the scene, the first render overrides the most recent render making it problematic to continue editing the scene.  No matter how many additional times I render the scene, the first render always redisplays in the main camera view.

I opened up my Vue 6 program and compared every option I could think of side by side to Vue 7 to see if I could find out why this problem exists when it doesn't ever happen in Vue 6, but I have had no success and unfortunately it is near impossible to finish a scene without updated render previews in the background.

If this sounds confusing in any way, what I'm basically saying is the "display last render in back" is working like a "display first render in back" option.