[horde] Icons not displaying

[Paul W. Woodruff]

Ver:  Horde 2.2 Framework

This is my first install attempt.  I've uploaded Horde and IMP to my website
and cannot get the icons at the bottom of the page to display.  Instead, I
just get the little square with the dot.  Checking the properties of the
icons, I get:
	Horde:	'http://{my domain}/horde/graphics/home.gif'
	IMP:		'http://{my domain}/horde/imp/graphics/imp.gif'
	LogOut:	'http://{my domain}/horde/graphics/logout.gif'
I've checked the location and the appropriate .gif files exist.  I'm sure
something simple is not configured right, but I don't know where to look.

PS: 'http://{my domain}/horde/test.php' works OK