If you are viewing the PDF in Acrobat Reader XI, you may be falling prey to a problem discussed here: http://thread.gmane.org/gmane.editors.lyx.general/77622.
Paul
If you are viewing the PDF in Acrobat Reader XI, you may be falling prey to a problem discussed here: http://thread.gmane.org/gmane.editors.lyx.general/77622.
Paul