If you have problems with starting your external editor, the reason may be that the editor starting in "the background"; this is called forking: & knode; only notices the sub-process started and has finished, and thinks you have quit the editor. The editor gvim is an example for this; you can disable the forking of gvim with the commandline switch -f. It is recommended that you refer to the documentation of your editor you are experiencing this problem.
Se ten problemas para iniciar o editor externo, pódese deber a que o faga "no fondo"; isto chámase forking; o & knode; só percibe que o subproceso se iniciou e rematou e pensa que vostede deixou o editor. O editor gvim é un exemplo disto; pódese desactivar o forking de gvim coa opción da liña de comandos - f. Recoméndase que consulte a documentación do editor se atopa este problema.