Thanks for the input Rolin Loon, but it only deepens the question. You see my home, yet I don't. It is, in fact still there because on more thorough investigation I find that when I walk about within its confines, I bump into its invisible walls. I have entered the site by TP using another Alt. character and experience the same invisible barriers. I have taken a snapshot of the Avie , Sandygirl (gnuguy) sandng on th invisible second floor just above the entrance to the home, where a patio chair is placed just inside the front door. How can I make it visible to me or my alt? As you can see, my video card has no problem with the other houses around it.
I guess I truly am as dumb as I look.