Index: common.php
===================================================================
--- common.php	(revision 8546)
+++ common.php	(working copy)
@@ -253,9 +253,13 @@
         die();
     }
 
-    if (is_dir($homedir."/install") && $debug<2)
+if (is_dir($homedir."/install") && $debug<2)
     {
-        die ("<br />Everything is fine - you just forgot to delete or rename your LimeSurvey installation directory (/admin/install). <br />Please do so since it may be a security risk.");
+	rmdirr($homedir."/install");
+      if (is_dir($homedir."/install") && $debug<2)
+	{
+	die ("<br />Everything is fine - you just forgot to delete or rename your LimeSurvey installation directory (/admin/install). <br />Please do so since it may be a security risk.");
+	}  
     }
 
 }
@@ -7507,4 +7511,4 @@
     }
     if (empty($right)) return true;
     if (isset($cache[$sid][$uid][$right]) && $cache[$sid][$uid][$right] == 1) return true; else return false;
-}
\ No newline at end of file
+}