I have a clip made of a sequence of .png images, which I import to premiere. When I create a new sequence with different dimensions from that of the clip, add the clip to it and export it as a .wmv file, I see a lot of aliasing. However, when I make a sequence out of the clip (using the "New sequence from clip" option) and export it to a .wmv file, everything works great, even if I scale the clip in the sequence. In what lies the difference? The two sequences's settings only differ in their dimension.