Index: class.t3lib_tceforms.php
===================================================================
--- class.t3lib_tceforms.php	(revision 10404)
+++ class.t3lib_tceforms.php	(working copy)
@@ -4170,19 +4170,21 @@
 	 * @return	string		Style attribute content, if any
 	 */
 	function optionTagStyle($iconString) {
+		$styleAttr = '';
 		if ($iconString) {
 			list($selIconFile, $selIconInfo) = $this->getIcon($iconString);
+			if(is_file(t3lib_div::resolveBackPath(PATH_typo3 . selIconFile)) {
+				$padLeft = $selIconInfo[0] + 4;
 
-			$padLeft = $selIconInfo[0] + 4;
+				if ($padLeft >= 18 && $padLeft <= 24) {
+					$padLeft = 22; // In order to get the same padding for all option tags even if icon sizes differ a little, set it to 22 if it was between 18 and 24 pixels
+				}
 
-			if ($padLeft >= 18 && $padLeft <= 24) {
-				$padLeft = 22; // In order to get the same padding for all option tags even if icon sizes differ a little, set it to 22 if it was between 18 and 24 pixels
+				$padTop = t3lib_div::intInRange(($selIconInfo[1] - 12) / 2, 0);
+				$styleAttr = 'background: #fff url(' . $selIconFile . ') 0% 50% no-repeat; height: ' . t3lib_div::intInRange(($selIconInfo[1] + 2) - $padTop, 0) . 'px; padding-top: ' . $padTop . 'px; padding-left: ' . $padLeft . 'px;';
 			}
-
-			$padTop = t3lib_div::intInRange(($selIconInfo[1] - 12) / 2, 0);
-			$styleAttr = 'background: #fff url(' . $selIconFile . ') 0% 50% no-repeat; height: ' . t3lib_div::intInRange(($selIconInfo[1] + 2) - $padTop, 0) . 'px; padding-top: ' . $padTop . 'px; padding-left: ' . $padLeft . 'px;';
-			return $styleAttr;
 		}
+		return $styleAttr;
 	}
 
 	/**
@@ -4192,20 +4194,25 @@
 	 * @return	string		Style attribute content, if any
 	 */
 	function optgroupTagStyle($iconString) {
+		$styleAttr = '';
 		if ($iconString) {
 			list($selIconFile, $selIconInfo) = $this->getIcon($iconString);
 
-			$padLeft = $selIconInfo[0] + 4;
+			if(is_file(t3lib_div::resolveBackPath(PATH_typo3 . selIconFile)) {
+			
+				$padLeft = $selIconInfo[0] + 4;
 
-			if($padLeft >= 18 && $padLeft <= 24) {
-					// In order to get the same padding for all option tags even if icon sizes differ a little,
-					// set it to 22, if it was between 18 and 24 pixels.
-				$padLeft = 22;
+				if($padLeft >= 18 && $padLeft <= 24) {
+						// In order to get the same padding for all option tags even if icon sizes differ a little,
+						// set it to 22, if it was between 18 and 24 pixels.
+					$padLeft = 22;
+				}
+				$padTop = t3lib_div::intInRange(($selIconInfo[1] - 12) / 2, 0);
+
+				$styleAttr = 'background: #ffffff url(' . $selIconFile . ') 0 0 no-repeat; padding-top: ' . $padTop . 'px; padding-left: ' . $padLeft . 'px;';
 			}
-			$padTop = t3lib_div::intInRange(($selIconInfo[1] - 12) / 2, 0);
-
-			return 'background: #ffffff url(' . $selIconFile . ') 0 0 no-repeat; padding-top: ' . $padTop . 'px; padding-left: ' . $padLeft . 'px;';
 		}
+		return $styleAttr;
 	}
 
 	/**