=== modified file 'src/game.c'
--- src/game.c	2011-05-13 18:40:34 +0000
+++ src/game.c	2011-05-19 17:08:47 +0000
@@ -370,6 +370,7 @@
 						JUMPMAN.pos_y--;
 						JUMPMAN.movement = SPRITE_WALK_LADDER;
 					}
+					JUMPMAN.last_y_collide = JUMPMAN.pos_y;
 				}
 				else
 				{
@@ -394,6 +395,7 @@
 						vert_move = VERT_MOVE_NONE;
 						JUMPMAN.pos_y--;
 					}
+					JUMPMAN.last_y_collide = JUMPMAN.pos_y;
 				}
 				else
 				{