Robert Orr wrote:
I used to try going into the file with the text editor and changing the lyxformat tag so that the file matched what version of LyX I was using. That sometimes solved the program.
That may seem to work, but it is a dangerous game to play. When LyX reads a file, it doesn't really expect that the lyxformat tag doesn't match content.
So any mismatching content might put LyX in a strange internal state, which may manifest itself later as strange crashes or even strange stuff written when you eventually save the file. LyX has very little protection against such problems. That is actually what the lyxformat tag is for - it prevents LyX from trying to read 'dangerous stuff'. Helge Hafting
