Lens problem? when I take a picture, I have to zoom in to get a full picture, otherwise the lens seems to cut off diagonally on top and bottom.

have you tried zoom setting in the menu? wide, full , or zoom?

Have you tried to reset to original settings in the setup window. I would try that maybe..
If that doesn't work then its probably an issue with your sensor unit which is apart of your lens.

On the remote control there is a zoom button. Your picture is zoomed in x2. You need to set it to normal.

we have the same one on the remote there is a zoom. zoom it a few times.

It seems as if your tv is in "crop", "Zoom", or "full" mode. Select letterbox, normal, or full-screen mode. Look in the manual for exact instructions.

Check what format you are in. 4:3 is like a regular tv. Sides will be cut off in this format on a widescreen tv. 16:9 zoomed will cut of top & bottom slightly. You want just regular 16:9. No zoom.

look for a button on the remote control that says, "pic size"," zoom","aspect" and scroll through until you get to 16x9, full , fill screen . i can't remember what this model states on the screen.

Depending on the model and manufacturer, look for a "format" or an "aspect button on the remote control. This will change the screen size from 4:3, full, zoom, etc.

On your remote control you should see a zoom or picture size button. Try changing this back to 16:9. I expect that your screen got zoomed either on purpose or by accident by someone. Some people zoom in the picture to eliminate the aspect ratio areas at the top and bottom and/or sides.

This should be your problem, just un-zoom the picture

You would look for a format button on your remote.
Dish Network: bottom left the asterisk "*" button
DirecTV: top left, second from the top labelled "format"
Cable remote: look for format, zoom, or aspect ratio

Pressing this button should scroll you through the options.