Index: skins/common/shared.css
===================================================================
--- skins/common/shared.css	(revision 79861)
+++ skins/common/shared.css	(working copy)
@@ -824,7 +824,9 @@
 	border: 1px solid #ccc;
 	margin: 2px;
 }
-
+li.gallerybox div.thumb a.image img{
+	vertical-align: text-top;
+}
 div.gallerytext {
 	overflow: hidden;
 	font-size: 94%;
Index: includes/ImageGallery.php
===================================================================
--- includes/ImageGallery.php	(revision 79861)
+++ includes/ImageGallery.php	(working copy)
@@ -286,14 +286,13 @@
 					$imageParameters['alt'] = $nt->getText();
 				}
 
-				# Set both fixed width and height. Otherwise we might have problems
-				# with the vertical centering of images where height<line-size
+				# Set both fixed width and min-height.
 				$thumbhtml = "\n\t\t\t".
-					'<div class="thumb" style="width: ' .($this->mWidths+30).'px; height: ' .($this->mHeights+30).'px;">'
+					'<div class="thumb" style="width: ' .($this->mWidths+30).'px; min-height: ' .($this->mHeights+30).'px;">'
 					# Auto-margin centering for block-level elements. Needed now that we have video
 					# handlers since they may emit block-level elements as opposed to simple <img> tags.
 					# ref http://css-discuss.incutio.com/?page=CenteringBlockElement
-					. '<div style="margin:'.$vpad.'px auto;">'
+					. '<div style="margin:'.$vpad.'px auto 0;">'
 					. $thumb->toHtml( $imageParameters ) . '</div></div>';
 
 				// Call parser transform hook