[ohohyodafarted]

On my porthole, the switch simply causes an increase in the verticle voltage to the deflection yoke. It does not alter the horizontal width at all. IN essence what happens is that you get a stretching of the verticle and as a result the picture IS distorted. If you watch the picture in normal position you get a 1 inch black area at the top and bottom of the crt and you can see all the digital data in the top 3 or so traces.