how does it work when you display a Powerpoint presentation that was originally generated on a desktop computer (@ 1280 * 1024) on a 17" laptop screen running at 1440 * 900?
Does the aspect ratio switch screw up your images, or do you have blank areas on either side of the screen?
In my experience, there are black, blank areas on either side of the presentation image. I haven’t looked, but there may be a “fit to screen” setting to expand the 4:3 aspect to a 16:9. We usually use a projector so you don’t see the blank areas.