Yes you are right, I did not explained in detail.
When I'm at the game lobby or at WormNet trough the game directly, I have the colors a bit messed. But when I go to the game, it usually get's good (or if not, I just need to minimize and restore in the firsts seconds of the game).
I generated the map randomly, then I went to map editor to check if there would be any grid (to remove it, because it can give easily triple or more kills for the first person to move). When I was at the editor, dunno why, colors got very worst and I hardly see what I was clicking. Somehow I could advance for the game, hoping that in the game the colors get well (like I said above). That's why when the game started and I saw that map, I told Joschi that I was getting a color bug. That's when he said me that it wasn't a color bug...
But this all happened due the the color bug of windows 7, that's why my very shorted explanation in the previous post
