diff --git a/ui/layout.css b/ui/layout.css
index cb64c4ba..2b41dedd 100644
--- a/ui/layout.css
+++ b/ui/layout.css
@@ -23,6 +23,7 @@
   text-decoration: none;
 }
 [tooltip]:after {
+  display: none;
   content: attr(tooltip);
   position: absolute;
   bottom: 130%;
@@ -40,6 +41,7 @@
   transition: all 0.4s ease;
 }
 [tooltip]:before {
+  display: none;
   content: "";
   position: absolute;
   width: 0;
@@ -55,9 +57,11 @@
   bottom: 90%;
 }
 [tooltip]:hover:after {
+  display: block;
   bottom: 100%;
 }
 [tooltip]:hover:before {
+  display: block;
   bottom: 70%;
 }
 [tooltip]:hover:after,
@@ -70,12 +74,12 @@
   left: 15px;
 }
 .tooltip-right[tooltip]:before {
-  border-left: none;
+  border-left: 5px solid transparent;
   border-right: 5px solid #ffcb66;
   border-bottom: 5px solid transparent;
   border-top: 5px solid transparent;
   bottom: auto;
-  left: 10px;
+  left: 5px;
   top: 25%;
 }
 .tooltip-right[tooltip]:hover:after {
diff --git a/ui/layout.less b/ui/layout.less
index df5d968b..130651a8 100755
--- a/ui/layout.less
+++ b/ui/layout.less
@@ -81,6 +81,7 @@
 	text-decoration: none;
 }
 [tooltip]:after {
+	display: none;
 	content: attr(tooltip);
 	position: absolute;
 	bottom: 130%;
@@ -98,6 +99,7 @@
 	transition: all 0.4s ease;
 }
 [tooltip]:before {
+	display: none;
 	content: "";
 	position: absolute;
 	width: 0;
@@ -113,9 +115,11 @@
 	bottom: 90%;
 }
 [tooltip]:hover:after {
+	display: block;
 	bottom: 100%;
 }
 [tooltip]:hover:before {
+	display: block;
 	bottom: 70%;
 }
 [tooltip]:hover:after, 
@@ -131,12 +135,12 @@
 	left: 15px;
 }
 .tooltip-right[tooltip]:before {
-	border-left: none;
+	border-left: 5px solid transparent;
 	border-right: 5px solid #ffcb66;
 	border-bottom: 5px solid transparent;
 	border-top: 5px solid transparent;
 	bottom: auto;
-	left: 10px;
+	left: 5px;
 	top: 25%;
 }
 .tooltip-right[tooltip]:hover:after {
diff --git a/ui/ui.js b/ui/ui.js
index 80ce11f0..61f4b06b 100755
--- a/ui/ui.js
+++ b/ui/ui.js
@@ -836,7 +836,12 @@ function exportPreviewsDialog(state, dfl){
 	cfg['Fav directory name'] = 'fav'
 	cfg['Size | '+
 			'The selected size is aproximate, the actual\n'+
-			'preview will be copied from cache.'] = {
+			'preview will be copied from cache.\n\n'+
+			'NOTE: if not all previews are yet generated,\n'+
+			'this will save the available previews, not all\n'+
+			'of which may be of the right size, if this\n'+
+			'happens wait till all the previews are done\n'+
+			'and export again.'] = {
 		select: ['Original image'].concat(PREVIEW_SIZES.slice().sort()),
 		default: 1
 	}