[Jack_Leslie]

You should have these two stocks:

pawn Code:

stock ShowDescriptionText(playerid, string[])
{
    KillTimer(DescriptionTimer[playerid]);
    TextDrawSetString(DescriptionText[playerid], string);
    TextDrawShowForPlayer(playerid, DescriptionText[playerid]);
    DescriptionTimer[playerid] = SetTimerEx("HideDescriptionText", 5000, 0, "i", playerid);
    return 1;
}

stock HideDescriptionText(playerid)
{
    TextDrawHideForPlayer(playerid, DescriptionText[playerid]);
    return 1;
}