Maybe it will take a tourney, much like the Tourney "Backgammon as you may not have known it before" (another serious bug!) to fix this bug (if it is the way Puupia described it - I had thought about it actually being a "mistake" by the creator of the tournament). I know this is not the place for this message, just wanted to comment on the "Serious Bug" topic.
My 2 cents on how to make Frog Legs a game that is not annoying (and fun!) to play: as soon as you "shoot" a Zero, all neighbouring spaces that are also Zero are uncovered (like in Minesweeper).
Option 2: have the same setup of frogs for each player. However, each player only uncovers frogs in his/her own board (and thus doesn't know what the other player is uncovering). Once a frog is found, it is uncovered for both players and the points are awarded for the player who found the frog. The same goes if a frog is killed. Winner is who has more points after all frogs are saved/killed.