Hi
Not quite sure what you mean by "Out of Line Sync" Is this a sound problem?
With regards your image size, provided the file format (type of file...avi; wmv, mov, mpeg etc.) can be loaded into VP, then if it is not the "standard" aspect ratio of 16:9, the program will usually adjust the height or width (whichever is greatest) so as to fit the aspect ratio of the videopad frame.
Provided your video AR is 16:9 or a ratio of 1.77. (1920 x 1080 or 1280 x 720 etc.) it will automatically fill the whole video frame whatever the actual size in pixels.
If your video frame is 1531 x 988 as you say, the aspect ratio is 1.54 This means that VP will fit it vertically into the frame but as it won't stretch your image horizontally as this would deform it, it will leave a border on the left and right.
If you want this aspect ratio video to fill the frame, you will need to use the CROP effect and set it to 16:9. This will result in a loss of the top and bottom of the image.
Or you can physically deform it yourself using the SCALE effect and adjusting the X% value.
Assuming you are not satisfied with the raw video (1531 x 988) you have, what is the frame size in pixels after you have converted it? If it is markedly reduced then obviously you will lose definition.
Nat