Thanks to everyone for their suggestions about version control. I still can't seem to get it to work. I am working with winXP. I have the RCS files from Purdue, have unzipped them and have put them in a directory (C:\lyx\RCS) which I have also added to the PATH variable. (There is no install, start or readme file so I can't think of any othe rsteps to take.) I open a lyx file of mine (called prova1.lyx) from my work directory (c:\documents\richard\lyxfiles) and try to use the verison control from the lyx file menu.(File-> version control) I usually get a window called REGISTER, and so I put a comment in (for instance, "first version") and close. The LYX dos window carries an error message which reads ci: RCS/prova1.lyx : no such file or directory
If I carry on, or if I close the file, or close LYX, or close windows, and then start again the same usually happens. But twice, I don't understand how, I had instead a slightly different response: instead of the REGISTER window I got a menu with other options (check version, revert, and 2 others I don't remember) and tried to use the options. The error message this time was rlog: RCS/prova1.lyx : no such file or directory Next time I got the REGISTER window again. What am I doing wrong? Thanks. Richard