Index: sites/all/modules/contrib/imagefield_assist/imagefield_assist.module
===================================================================
--- sites/all/modules/contrib/imagefield_assist/imagefield_assist.module	(revision 534)
+++ sites/all/modules/contrib/imagefield_assist/imagefield_assist.module	(working copy)
@@ -1480,13 +1480,16 @@
       $img_path = file_create_url($image->path):
       $img_path = imagecache_create_url($preset, $image->path);
 
-    if ($preset != 'fullsize' && isset($attributes['size_label'])) {
-      $width = $height = '';
+    // Fix for IE8 that won't display an image when width and height are set to empty.
+    $width = $height = '';
+    if ($preset == 'fullsize' || !isset($attributes['size_label'])) {
+      if (!empty($attributes['width'])) {
+        $width = 'width="' . $attributes['width'] . '"';
+      }
+      if (!empty($attributse['height'])) {
+        $height = 'height="' . $attributes['height'] . '"';
+      }
     }
-    else {
-      $width = 'width="' . $attributes['width'] . '"';
-      $height = 'height="' . $attributes['height'] . '"';
-    }
     
     $img_tag = sprintf(
       '<img src="%s" alt="%s" title="%s" %s %s />',