I down loaded the ig_dropDown.css and added it to my style sheet for the application.  http://samples.infragistics.com/2009.1/WebFeatureBrowser/styles/default/ig_dropDown.css
I have the following for the button.

.igdd_DropDownButton

When the WebDropDown is displayed the Value area has the image in it so I see the dropDown image in the background about 18 times.  When I mouse over the input area they disappear.  Which style should I be changing?

I changed background-color: white and background-image: none in .igdd_ValueDisplay:

.igdd_ValueDisplay

BORDER-RIGHT: 0px;

BORDER-TOP: 0px;

FONT-WEIGHT: normal;

FONT-SIZE: 10pt;

BORDER-LEFT: 0px;

WIDTH: 100%;

BORDER-BOTTOM: 0px;

FONT-FAMILY: Verdana, Arial, Helvetica, sans-serif;

BACKGROUND-COLOR: #ffffff;

background-image: none;

}

It looks better, but still not right.

{

Z-INDEX: 9999;

WIDTH: 17px;

background-image: url(Images/ig_cmboDownXP1.png);

}