diff -ur /root/orig-crawl-source/acr.cc ./acr.cc
--- /root/orig-crawl-source/acr.cc	2005-07-20 17:21:45.000000000 +0100
+++ ./acr.cc	2005-07-20 18:05:37.092534880 +0100
@@ -1394,7 +1394,7 @@
         break;
 
     case CONTROL('O'):
-    case '0':
+//    case '0':
     case CMD_EXPLORE:
         if (you.level_type == LEVEL_LABYRINTH || you.level_type == LEVEL_ABYSS)
         {
diff -ur /root/orig-crawl-source/liblinux.cc ./liblinux.cc
--- /root/orig-crawl-source/liblinux.cc	2005-07-20 17:21:45.000000000 +0100
+++ ./liblinux.cc	2005-07-20 18:05:25.833246552 +0100
@@ -362,7 +362,7 @@
     key_to_command_table['\''] = CMD_WEAPON_SWAP;
 
     // digits
-    key_to_command_table['0'] = CMD_EXPLORE;
+    // key_to_command_table['0'] = CMD_EXPLORE;
     key_to_command_table['1'] = CMD_MOVE_DOWN_LEFT;
     key_to_command_table['2'] = CMD_MOVE_DOWN;
     key_to_command_table['3'] = CMD_MOVE_DOWN_RIGHT;