nero vision exp. 3 question doesn't pop up

[bddp]

i'm using nero express 3 and when i want to convert avi file to dvd if file is too big always message will apear, something like: size iz too big for dvd, do you want to reduce the size or you want to record to dvd-9.....
i don't use dvd-9 and made error accepting it selecting option don't show this again, so now this message is not appering any more and i would like to know if there is a possibility to activate that message again and how?

thanks.

[kwkanne]

I would also like to know if this is possible. Any one out there know?