Hi again, I guess I should have been a little more specific on the problem encountered in my previous message.
When I try to preview the file in pdf format or export it into LaTeX (plain), I get the following error: Error while previewing format: pdf2File 'C:/Users/Sinan/AppData/Local/Temp/lyx_tmpdir.Hp5784/lyx_tmpbuf2/Thesis_LyX.tex' was not closed properly. Any help would be appreciated. Sinan