[Zope] external editor win-client: fatal error: unknown encoding: mbcs

hi all, i use the externaleditor product and its win client. when i try and externaledit a file, in most cases the client sais: fatal error: unknown encoding: mbcs (some files generate this error, others dont...even with the same content type...) which subsystem generates this encoding? (not me ;-) which subsystem complains? how to get rid of this? any ideas? best and thanx in advance aexl Version Info Server: Zope 2.6 Externaledit 0.7 Apache with mod_ssl Client: Zopeedit 0.7 on Win2k