diff -r 94406595e9e0 install.php
--- a/install.php	Wed Dec 12 13:18:52 2007 +0900
+++ b/install.php	Wed Dec 12 13:20:12 2007 +0900
@@ -267,16 +267,8 @@ if ($INSTALL['stage'] == DIRECTORY) {
 
 if ($INSTALL['stage'] == DATABASE) {
 
-    /// different format for postgres7 by socket
-    if ($INSTALL['dbtype'] == 'postgres7' and ($INSTALL['dbhost'] == 'localhost' || $INSTALL['dbhost'] == '127.0.0.1')) {
-        $INSTALL['dbhost'] = "user='{$INSTALL['dbuser']}' password='{$INSTALL['dbpass']}' dbname='{$INSTALL['dbname']}'";
-        $INSTALL['dbuser'] = '';
-        $INSTALL['dbpass'] = '';
-        $INSTALL['dbname'] = '';
-
-        if ($INSTALL['prefix'] == '') { /// must have a prefix
+    if (($INSTALL['dbtype'] == 'postgres7') && ($INSTALL['prefix'] == '')) { /// must have a prefix
             $INSTALL['prefix'] = 'mdl_';
-        }
     }
 
     if ($INSTALL['dbtype'] == 'mysql') {  /// Check MySQL extension is present