Trigger Unhappy

I have a sports-type game in the works.

Here're my triggers.
Visitorscore (Homescore trigger the same as this one)

Events -
Unit - A unit enters Visitor Goal <gen>
Conditions -
(Triggering Unit) Equal to The Troll 0009 <gen>
Actions -
Set Homescore = (Homescore + 1)
Leaderboard - Change value of Player 5 (Yellow) in (Last created Leaderboard) to HomeScore
Game - Display to (All players) the text: Gooaal! One point for the Visitor Team!
Unit - Kill The Troll 0009 <gen>

Troll Check
Events -
Unit - The Troll 0009 <gen> Dies
Conditions - (none)
Actions -
Unit - Remove (triggering unit) from the game
Unit - Create 1 (Unit type of The Troll 0009 <gen>) for Neutral Hostile at (Center of Playfield <gen>) facing 270.00 degrees.

~~
The triggers seem to work fine... once. When the troll enters a goal, it says "Gooall! One point..." the troll vanishes, and appears at center field. The Leaderboard changes the score from 0 to 1 in favor of the goal-scoring team. After this, whenever the troll enteres either Goal region, nothing happens.

What can I do?

(Triggering Unit) Equal to The Troll 0009 <gen>

that line is your problem
when the map creats a new troll it wont be The Troll 0009 it will be some other number.

yep.
your condition have to be "unit-type comparision"...