I had the exact same problem, and the solution in my case had nothing to do with Vues rendering. It was the player itself. Real One and QuickTime. The funny thing was, that I had rendered out this animation once before but my computer had to be reformatted as I was attacked, and I did not back up the original rendered animation. But when I played back the re-rendered animation, it was so bad that I thought I had rendered it out at a stupidly small scale, and in preview mode, and the player had scaled the size up. (But it hadnt, and I had not made a mistake). The problem was in the player settings for movie playback. I had rendered out an animation on broadcast and watched the frames as they were rendered. They were all perfect until it came to playing them back. I then tried it using QuickTime... Same Problem. I then went to the player settings and saw that when I had re-installed the players, I had left the internet playback at the default settings...I think it was 56k. I reset the players to 2MB/LAN and BINGO... No More problem. The renders were perfect (But I did have to re-render the animation again). Setting the players did not fix the problem of the renders I had already done. (I think it had something to do with the compression the player used to save the animation. Oh, and it still looked bad when I tried full uncompressed frames as well. It only worked fine when I bumped up the playback settings on the actual players. Check the settings of your players. If they are at maximum (2MB/LAN), then this is not the same problem I was having. I really hope this helps you:)