image clarity problem

[RaDi3320]

i'm currently working on a design and there are some details i want animated with a sort of growing effect. since i havent done a lot of flash work before, i've been browsing tutorials and eventually finished the animation beautifully. there's a bit of a problem though. once included in the design, the animation seems to have a much worse quality/clarity than the original image i used. have no idea what this is about, since i've set flash quality to best, and jpeg compression to 100.

pls help.