Hi,
In the preferences dialog, Outputs->Misc->Papersize has a choice "default", which I only can see as a nonsense option. 1) This so called "default" merely refers to the hard coded choice by LyX: src/lyxrc.C line 191 default_papersize = BufferParams::PAPER_USLETTER; This seems to me an arbitrary choice and does not deserve the alias "default". 2) Choose "default" here and save the settings. Reopening the Preferences dialog will indeed show "default". However, closing/restarting LyX, will show you now "US Letter" in the preferences page size. So, after all, it's a fake "default". 3) The "default" is totally non-informative. It's much better to tell the user what the real papersize choice is here. That "default" is "US letter" is too obscure. I suggest to get rid of the choice option "default" altogether. Set the pagesize by default to something (US letter, A4, or whatever) but don't call that *the* default. Rob.