* src/nautilus-property-browser.c: (set_up_category_width):
	fixed bug 5230, shrinking the width of Backgrounds window
	causes floating point exception, by pinning the number of
	columns at 1.

	* icons/Makefile.am:
	* icons/default.xml:
	* icons/eazel/eazel.xml:
	* icons/vector/vector.xml:
	* icons/zoom_body.png:
	* icons/eazel/zoom_body.png:
	new zoom control image from Susan