Help! converting eps to a button

Hi everyone,
im new to this forum. I need some help, im working on a flash project for work and im stuck… Im working with vector images… i imported an eps image into flash and i need to convert image to a button… but when i convert it and test movie all i see is a bright red square in place of the object i converted. but if im viewing it from the timeline it looks fine. anyone have any idea why it does that? what am i doing wrong? thanks for any help you can give me.