What happened to the quality?

I exported my animation as an animated gif. with the intent of reimporting it and turning it into a symbol that I could manipulate with tweening. Well, it was fine until I tweened it, then I test the movie to find that the quality looked down; it looked kind of pixellated. Anybody know why?

Check your quality settings, go to File > Publish Settings, then click on the Flash tab and you’ll see a JPEG quality slider. I usually use something between 80 to 90.