[iGetty]

To show it once, you could create a variable...

EG:

pawn Код:

new BoxShown[MAX_PLAYERS];

public OnPlayerConnect(playerid)
{
    BoxShown[playerid] = 0;
}

if(IsPlayerInRangeOfPoint(playerid, 5.0, 1629.9722,147.9344,35.5146))
{
    if(BoxShown[playerid] == 0) //This checks if the box is allowed to be shown.
    {
        CreateBox(playerid, "info", "Welcome to las venturas");
        BoxShown[playerid] = 1; //This states that the box shouldn't be shown again.
    }
}

Edit: Above, you beat me. Nice