Hi, according to feedbacks in the list, the preamble line: > usepackage[ps2pdf,pdftitle={title}, > urlcolor=blue,linktocpage,letterpaper,colorlinks=true]{hyperref} seems to provide good pdf output. However, I get Latex errors for math mode in section headers. It doesn't produce any output (of course not). The errors look like: > LaTeX Font Info: Font shape 'OT1/ptm/bx/n' in size <12> not available > (Font) Font shape 'OT1/ptm/bx/n' tried instead on input line 576 > !Undefined control sequence > \Generic Error > > #4 \errhelp \@err@ ... > l.576 ...difference \protect\( \Delta \protect\)} > > The control sequence at the end of the top line ...bla bla; Why are these fonts available, as long as I don't use package hyperref? Thanks -- Andreas Rau