It could be that the monitor was installed upside-down; other than that, check the settings on whatever device your feeding video to the screen with- a PC, a DVD player? It might have rotation settings.
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When the viewport is completely flipped around so you can see it when you are looking at the lens, it automatically flips it upside down so it is right side up to the viewer. Make sure it is locked into the correct position to prevent this from happening.
The orientation of your projector can be setup from the "Option" menu.
You may need to select the "FRONT" and "CEILING" options to display the correct orientation of the image.
Try connecting it to a different computer. If it's upside-down on another computer, then the panel is probably mounted upside-down. If it can be removed from the stand, remove it and see if it can be mounted the other way.
If it's correct on another computer, then your graphics settings are incorrect. Assuming you're running Windows, go to Display Properties, Settings tab, click Advanced button, look for a tab describing your video adapter (usually ATI or NVIDIA). In the video adapter's setup there is usually a Rotation option. The rotation option may be set to 180-degrees instead of Normal or 0-degrees.
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