additional links:
the logo page
capabilities

the position control allows you to position the logo by dragging it with the mouse. the nudge controls move the logo up, down, left or right one pixel at a time. they permit more precise adjustments than the position control can achieve.
if preview or dibdraw overlay video is running, the logo moves on the video as you move it in the dialog.
if you position the logo in a certain way and then change the video size, the driver stretches the logo to maintain the same relative size, and places it in the same relative position. the stretched artwork may have jagged diagonal edges and not look as good as unstretched artwork prepared with the intended video size in mind.