I am using LyX 2.0.4 in a portable installation (portable LyX).
When I try to visualize dvi, I get the following error: C:\USB16\PortableApps\Portableoyx2\Common\Temp\lyx_tmpdir.gq2928\lyx_tmpbuf2\Letterpaper.dvi Letterpaper.dvi isn't the file name of the document I am reading.In preferences -- file formats, I have given the path to yap.exe without success.
Someone has some ideas of what I can do? PDF works fine. Thanks,Denis J Navas