Thanks for the suggestion MaG. I did that but it didn't work. When I take the glass from inventory it appears at the bottom left of my screen, just as the youtube video scene shows. Supposedly all I should have to do is click on the window at that point but it simply won't go in. Tried it with the window open in close up, backed off with the window adjusted for correct focus, clicked on the glass while in the bottom left corner, etc. Nothing.