Thanks fellas. This is all very helpful. I still think I am doing something wrong. In the image posted by Steve showing Jupiter and four moons, Jupiter is fairly big and we see lines on it. In my telescope, according to my recollections of when I have been able to use it, Jupiter is so small there is no hope I would see lines no matter how sharp the image.
In the cutaway diagram of the refractor telescope posted by Steve, most of the focuser is inside the telescope body. When I have viewed Jupiter, the focuser has been extended nearly as far out as possible. Several inches. So....I am wondering if there are two planes which can be brought into focus. If so, then I am likely on the wrong one.
BTW, I have the manual but it is only four pages. The telescope looks exactly like the first photo in Steve's last post. It is assembled properly, but I just think it may be improperly focused. I will play with it at my next opportunity. Right now, it is raining softly with wind gusts to 25 mph. I know better than to point it at the Sun. Right now, I would have little idea where the Sun even is.
