I have been noticing that LyX 1.4.4svn outputs invalid latex in "Show changes in output" in a number of situations. One simple one is that it outputs
\section*{\changestart{}Ackowledgements\changeend{} which causes errors. It should instead output: \changestart{}\section*{Ackowledgements}\changeend{} (Changing only part of a section title could be problematic) Should I be making a list of all such problems I find? -- John C. McCabe-Dansted PhD Student University of Western Australia