Could the space between the Scrolled Window and the Scroll bars in the two widgets be set to zero by default. This would display the widget as one entity rather that two or three different entity at this stage.
As for GtkScrolledWindow - it has "scrollbar_spacing" style parameter which defaults to 3 pixels. You can alter it via rc-file. Look at attachment - it's "scrolledwin" sample from GTK+ sources with zero spacing.
Olexiy
Attachment:
scrolledwin+.tar.gz
Description: GNU Zip compressed data
