No, there's not a problem. Animated GIF are not supported in any version of PD. I found that out after many tries (you can always read the help menu).
What I do know is to bring my gif's to Windows Movie Maker (PC), produce a wmv file there and then import it to PD.
Then gif works. I guess thats another one on the wish list for future versions of PD.
No more error messages!
No more crashes!
Great looking videos!!