diff --git a/main/css/chamilo/default.css b/main/css/chamilo/default.css
index 5b19750c05..26f22033a0 100644
--- a/main/css/chamilo/default.css
+++ b/main/css/chamilo/default.css
@@ -291,7 +291,7 @@ input[text] {
 #top_corner {
 }
 #institution {
-	background-image: url(images/logo-chamilo.png);
+	background-image: url(images/logo-chamilo.gif);
 	background-repeat:no-repeat;
 	height:60px;
 	overflow:hidden;
diff --git a/main/css/chamilo/images/logo-chamilo.gif b/main/css/chamilo/images/logo-chamilo.gif
new file mode 100644
index 0000000000..f6945a1e4b
Binary files /dev/null and b/main/css/chamilo/images/logo-chamilo.gif differ
diff --git a/main/exercice/multiple_answer_combination.class.php b/main/exercice/multiple_answer_combination.class.php
index 88cdbd37ae..f5fc7042af 100755
--- a/main/exercice/multiple_answer_combination.class.php
+++ b/main/exercice/multiple_answer_combination.class.php
@@ -22,7 +22,7 @@ if(!class_exists('MultipleAnswerCombination')):
 
 class MultipleAnswerCombination extends Question {
 
-	static $typePicture = 'mcma.gif';
+	static $typePicture = 'mcmac.gif';
 	static $explanationLangVar = 'MultipleSelectCombination';
 
 	/**
diff --git a/main/img/mcmac.gif b/main/img/mcmac.gif
new file mode 100644
index 0000000000..4ce062cc15
Binary files /dev/null and b/main/img/mcmac.gif differ