I have a problem with NeoLemmix, in that it seems to be remembering my moves and repeating them, even after a failed level attempt.

For example, say I start a level off by making one lemming a Blocker.  I then realize that this was a mistake, and so I nuke the level.  When the level restarts, the game will automatically make that same lemming a Blocker.

Is there a way to turn off this function?