A frequent usage of your Proto-Board makes holes can't hook micro legs, leds pins, peeled wire...
Pics taken from my Wifi Nokia N80
Step 1: Opening Proto-Board
Step 2: Removing the Cover and Discovering Internal Structure
Step 3: Finding the Problem and Solving It
Be sure there is no component hooked to any hole.
Do it in this way:
Press the left side of the first piece in the top of a column, and move the handle keeping pressing. Redo this for the right side of that column of pieces.
Redo that in every column
And now the rows and columns that drives de current and voltage.
Step 4: Reconstructing the Proto-Board
And that's all folks!!