Try:
code:
<Position Left="5" Top="40" Width="70" Height="218"/>
<Units>SizePixels</Units>
</Position>
This will keep the Left and Top values in dialog units (1 unit = 1.5 pixels), but will interpret the Width and Height values as pixels. Eventually, you can use AllPixels instead of SizePixels to have Left and Top
also in pixels. It's easier for me to work that way as it lets me perfectly position a control or element.
EDIT: But indeed, that small change seems to make the list box lots higher!
Are you sure you don't have a typo in the XML?