There's definatly something broken in ConvertX - if I playback something that (say) should have the word "uni***sal" across the start, you can't see the U or the L in any aspect ratio. I think it's doing what I suggested above. It's scaling up the height to the widescreen DVD pixel height standard, then making the width match in the correct aspect ratio, and my player or TV is chopping off the sides because ConvertX is putting the edges outside of the standard DVD width limits.

This is why I think the IQ has gone down - I'm losing picture width and what's left is then being unessessarily stretched to fit.