[¤Adas¤]

This will not work. Functions tolower and toupper only return the character...
You can try this. Is it what you want?

pawn Код:

public OnPlayerConnect(playerid)
{
new Name[MAX_PLAYER_NAME];
GetPlayerName(playerid, Name, sizeof(Name));
Name[0] = toupper(Name[0]);
Name[strfind(Name, "_", true) + 1] = toupper(Name[strfind(Name, "_", true) + 1]);
SetPlayerName(playerid, Name);
return true;
}