CompuServe Messages

My first flic was the Birdy.fli that came with 3ds. That worked fine, although slow. The second one was one I made using the cow mesh file from the 3dstudio library here. That one loaded fine and played fine, except the palette went all ugly greyish colours. The third one was the heart 3ds mesh file that I rendered (also found in the 3ds library). This one stopped at frame 4 and gave me a bad chunk error. Any ideas?