I am getting an error message `need LyX-Format 2,16, the chosen file is 2.00 This is so even with newly created files or after having saved the file or after having saved it under a new name. I tried to find information in the diverse help manuals of Lyx -without success. Could somebody explain what the Lyx file format is/does and how to get the newer format? I am having problems with the lyx2pdf program due to this error. I am using version 1.1.5 fix 2 and Suse Linux Thanks! Wolfgang Engelmann