Hi There Patricia!
I was almost finished my last drawing, When I noticed that the topography was not showing (on the 3D view) the way I set it up. I had it set perfectly but near the end of the drawing it was looking like the elevation was back down to 0". So I tried many things to get it back showing but no luck. It just does not show up. I deleted all the existing topography lines and tried to replace them but nothing changed except where I placed a driveway. It would go up and then down when I lowered the elevations. but the grass did not change at all. So now the house looks like it is up out of the ground by about 10". The sidewalk, driveway, and garage floor all look like they are floating. I have gotten it looking right by covering the yard area around the house with several driveways, and placing grass on them. But I was wondering if you know why this may of happened? And what I could try to fix it correctly? ......... (PS I hope it is not caused by my gaming card!)
Thanks Ralph

Thanks Patricia
That was it exactly. I did not know that setting was even there. It was turn off, so when I turned it back on, it works perfectly!

I learned something else today!
Thanks