diff --git a/install.php b/install.php
index baac2cc4..160492cd 100644
--- a/install.php
+++ b/install.php
@@ -1,6 +1,6 @@
 <?php
 	// Installation/upgrade file	
-	define('VERSION', 'v0.9.3-dev-6');
+	define('VERSION', 'v0.9.3-dev-7');
 	
 	require 'inc/functions.php';
 	require 'inc/display.php';
@@ -91,6 +91,19 @@
 					// Increase subject field size
 					query(sprintf("ALTER TABLE `posts_%s` CHANGE  `subject` `subject` VARCHAR( 100 ) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL", $_board['uri'])) or error(db_error());
 				}
+			case 'v0.9.3-dev-6':
+				// change to MyISAM
+				$tables = Array(
+					'bans', 'boards', 'ip_notes', 'modlogs', 'mods', 'mutes', 'noticeboard', 'pms', 'reports', 'robot', 'theme_settings', 'news'
+				);
+				$boards = listBoards();
+				foreach($boards as &$board) {
+					$tables[] = "posts_{$board['uri']}";
+				}
+				
+				foreach($tables as &$table) {
+					query("ALTER TABLE  `{$table}` ENGINE = MYISAM DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci");
+				}				
 			case false:
 				// Update version number
 				file_write($config['has_installed'], VERSION);
diff --git a/install.sql b/install.sql
index dcaf0b8d..60a756b9 100644
--- a/install.sql
+++ b/install.sql
@@ -28,7 +28,7 @@ CREATE TABLE IF NOT EXISTS `bans` (
   `board` smallint(6) DEFAULT NULL,
   PRIMARY KEY (`id`),
   UNIQUE KEY `id` (`id`)
-) ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=3 ;
+) ENGINE=MyISAM  DEFAULT CHARSET=utf8 AUTO_INCREMENT=3 ;
 
 --
 -- Dumping data for table `bans`
@@ -49,7 +49,7 @@ CREATE TABLE IF NOT EXISTS `boards` (
   PRIMARY KEY (`id`),
   UNIQUE KEY `uri` (`uri`),
   UNIQUE KEY `id` (`id`)
-) ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=2 ;
+) ENGINE=MyISAM  DEFAULT CHARSET=utf8 AUTO_INCREMENT=2 ;
 
 --
 -- Dumping data for table `boards`
@@ -71,7 +71,7 @@ CREATE TABLE IF NOT EXISTS `ip_notes` (
   `time` int(11) NOT NULL,
   `body` text NOT NULL,
   UNIQUE KEY `id` (`id`)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;
+) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;
 
 --
 -- Dumping data for table `ip_notes`
@@ -90,7 +90,7 @@ CREATE TABLE IF NOT EXISTS `modlogs` (
   `board` int(11) DEFAULT NULL,
   `time` int(11) NOT NULL,
   `text` text NOT NULL
-) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+) ENGINE=MyISAM DEFAULT CHARSET=utf8;
 
 --
 -- Dumping data for table `modlogs`
@@ -111,7 +111,7 @@ CREATE TABLE IF NOT EXISTS `mods` (
   `boards` TEXT NOT NULL,
   PRIMARY KEY (`id`),
   UNIQUE KEY `id` (`id`,`username`)
-) ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=2 ;
+) ENGINE=MyISAM  DEFAULT CHARSET=utf8 AUTO_INCREMENT=2 ;
 
 --
 -- Dumping data for table `mods`
@@ -149,7 +149,7 @@ CREATE TABLE IF NOT EXISTS `noticeboard` (
   `subject` text NOT NULL,
   `body` text NOT NULL,
   UNIQUE KEY `id` (`id`)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;
+) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;
 
 --
 -- Dumping data for table `noticeboard`
@@ -171,7 +171,7 @@ CREATE TABLE IF NOT EXISTS `pms` (
   `unread` tinyint(1) NOT NULL,
   PRIMARY KEY (`id`),
   UNIQUE KEY `id` (`id`)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;
+) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;
 
 --
 -- Dumping data for table `pms`
@@ -210,7 +210,7 @@ CREATE TABLE IF NOT EXISTS `posts_b` (
   `locked` int(1) NOT NULL,
   `embed` text,
   UNIQUE KEY `id` (`id`)
-) ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;
+) ENGINE=MyISAM  DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;
 
 --
 -- Dumping data for table `posts_b`
@@ -232,7 +232,7 @@ CREATE TABLE IF NOT EXISTS `reports` (
   `reason` text NOT NULL,
   PRIMARY KEY (`id`),
   UNIQUE KEY `id` (`id`)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;
+) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;
 
 --
 -- Dumping data for table `reports`
@@ -247,7 +247,7 @@ CREATE TABLE IF NOT EXISTS `reports` (
 
 CREATE TABLE IF NOT EXISTS `robot` (
   `hash` varchar(40) NOT NULL COMMENT 'SHA1'
-) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+) ENGINE=MyISAM DEFAULT CHARSET=utf8;
 
 --
 -- Dumping data for table `robot`
@@ -264,7 +264,7 @@ CREATE TABLE IF NOT EXISTS `theme_settings` (
   `theme` varchar(40) NOT NULL,
   `name` varchar(40) DEFAULT NULL,
   `value` text
-) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+) ENGINE=MyISAM DEFAULT CHARSET=utf8;
 
 --
 -- Dumping data for table `theme_settings`
@@ -283,7 +283,7 @@ CREATE TABLE IF NOT EXISTS `news` (
   `subject` text NOT NULL,
   `body` text NOT NULL,
   UNIQUE KEY `id` (`id`)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;
+) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;
 
 --
 -- Dumping data for table `news`
diff --git a/templates/posts.sql b/templates/posts.sql
index c3250e51..5c507799 100644
--- a/templates/posts.sql
+++ b/templates/posts.sql
@@ -24,4 +24,4 @@ CREATE TABLE IF NOT EXISTS `posts_{board}` (
   `locked` int(1) NOT NULL,
   `embed` text,
   UNIQUE KEY `id` (`id`)
-) ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;
+) ENGINE=MyISAM  DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;