Index: t3lib/class.t3lib_tceforms.php
===================================================================
--- t3lib/class.t3lib_tceforms.php	(revision 3768)
+++ t3lib/class.t3lib_tceforms.php	(working copy)
@@ -1534,6 +1534,7 @@
 				// Getting style attribute value (for icons):
 			if ($config['iconsInOptionTags'])	{
 				$styleAttrValue = $this->optionTagStyle($p[2]);
+				$cssClass = ' class="iconSelect"';
 				if ($sM) {
 					list($selectIconFile,$selectIconInfo) = $this->getIcon($p[2]);
 						if (!empty($selectIconInfo)) {
@@ -1597,6 +1598,7 @@
 			$item.= '<input type="hidden" name="'.$PA['itemFormElName'].'_selIconVal" value="'.htmlspecialchars($sI).'" />';	// MUST be inserted before the selector - else is the value of the hiddenfield here mysteriously submitted...
 		}
 		$item.= '<select'.$selectedStyle.' name="'.$PA['itemFormElName'].'"'.
+					($cssClass ? $cssClass : '') .
 					$this->insertDefStyle('select').
 					($size?' size="'.$size.'"':'').
 					' onchange="'.htmlspecialchars($sOnChange).'"'.
Index: typo3/stylesheet.css
===================================================================
--- typo3/stylesheet.css	(revision 3768)
+++ typo3/stylesheet.css	(working copy)
@@ -950,6 +950,10 @@
 	color: #666;
 }
 
+select.iconSelect {
+	min-width: 240px;
+}
+
 table.typo3-TCEforms OPTGROUP.c-divider,
 select option.c-divider {
 	font-style: italic;