Ah, okay. Well, I did find
this page in the documentation about vbox, maybe something there will help you?
Here are the box style properties that vbox can have, but I don't see Frame anywhere in the list. It seems to me that you might need to make your box image the size that you want the vbox to be... Frame is supposed to automatically resize the box, but from what I gather, it applies to the ADV dialogue box, and not to vbox...
The
position style properties for vbox include these:
xsize - int
Equivalent to setting xminimum and xmaximum to the same value. This has the effect of setting the width of the displayable.
ysize - int
Equivalent to setting yminimum and ymaximum to the same value. This has the effect of setting the height of the displayable.
(This may be what you want, since the documentation says that xminimum and yminimum only work with displayables that can vary in size.)
I've never messed with vbox coding before, but I hope this helps in some way. ^^;;