DVDX Frame rate

[keats]

Hello could someone help me will DVDX
I`ve got an error message i don't understand it's

Warning the input and output frame rate are not equal
pull down (up) will be performed.

I encoded once before with this message and the edges
of the people were all jagged.

I carn't see were to change the settings, any help or direction
to it would be appreciated.
Thanks.