Did you run the Reconfigure after the change? Make sure that SumatraPDF is in your path. I have change that I linux without problems. Sotiris
On Saturday 10 May 2008 20:35:01 Paul A. Rubin wrote: > bigblop wrote: > > I have installed LyX on windows XP. I would like to change the pdf viewer > > to something else (SumatraPDF which can be found on this link: > > http://blog.kowalczyk.info/software/sumatrapdf/) > > > > I then choose Tools -> Preferences -> File Formats -> PDF (pdflatex). And > > under viewer I type: sumatraPDF.exe. But when I want to preview from LyX > > I get an error that windows could not find the previewer. How do I change > > the PDF viewer? > > Either include the path to sumatraPDF.exe in the viewer field or add it > to the PATH prefix. > > /Paul