select *
	      from curso
			   inner join grupo_curso3_grupo_curso2 on (gcu32_id = cur_gcu32_id)
			   inner join grupo_curso3 on (gcu3_id = gc32_gcu3_id)
		  where gc32_gcu3_id = '121' and
		        cur_ecu_id != 3 and
				cur_fechaInicio >= NOW() and
				cur_mostrarPreinscripcion = 'Si' 
		  order by cur_fechaInicio asc
		  limit 1