Odd Loop

hey everyone, Ok im creating my maps as a roguelike style, anyhow, im 
having a problem with the display for the map.
Basicly, if its like say, a 10x10 map, it displays perfectly, but if i 
change the room settings to say 12x20 or 70x30 It ends up in a loop, im 
rather confused with this perhaps the collective knowledge can come up 
with an answer.

The code is..
void do_thri_look(CHAR_DATA * ch, char *argument)
{
          char buf[MSL];
          int temp_x          = 0;
          int temp_y          = 0;
          int max_x           = ch->in_room->map_max_x;
          int max_y           = ch->in_room->map_max_y;
          int temp_sector     = 0;
         
         
          while (temp_x != max_x)
          {
                    while (temp_y != (max_x + 1))
                    {
                             
                              temp_sector = find_sector_number(temp_x, 
temp_y, ch);
                             
                              if (ch->x == temp_x && ch->y == temp_y)
                                        sprintf(buf, "{RX{x");
                              else if (temp_y == max_y)
                                        sprintf(buf, "%s%s{x\n\r",
                                                
exits_table[temp_sector].sector_color,
                                                
exits_table[temp_sector].sector_char);
                              else
                                        sprintf(buf, "%s%s{x",
                                                
exits_table[temp_sector].sector_color,
                                                
exits_table[temp_sector].sector_char);
                             
                              send_to_char(buf, ch);
                             
                              if (temp_y == max_y)
                              {
                                        temp_y = 0;
                                        temp_x++;
                                        break;
                              }
                              temp_y++;
                    }
        }
}

temp_sector returns the value of the room's X/Y cord (the number for 
displaying the charater) and the exits_table (bad name i know, i ripped 
it out of my Defunct Socketmud) contains a table with every sector, 
their charater, color, cant_move message, full name etc)

int find_sector_number(int x, int y,  CHAR_DATA * ch)
{
          int sector;
         
          sector = ch->in_room->map[x][y];        
         
          return sector;
}

i *think* the problem is due to the buffer crashing out maybe?
I've tried forcing the look command to display only say max_x = 10/max_x 
= 10 and it works, but if i force it to another value it also ends up 
looping.

Any Ideas? Thanks =)

-Thri
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