Thanks Paul,
The error is:
LaTeX Warning: File `1_media_H_biobau.pdf' not found on input line 54.
! Package pdftex.def Error: File `1_media_H_biobau.pdf' not found.
See the pdftex.def package documentation for explanation.
Type H <return> for immediate help.
...
l.54 \includegraphics{1_media_H_biobau.pdf}
Using draft setting for this image.
Try typing <return> to proceed.
If that doesn't work, type X <return> to quit.
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I also tried experiments 1 and 2 without luck.
I only have problems with the files in the mounted windows share, if the files
are in my external hard-drive everything works smoothly.
I gave up on this problem months ago, but it would be awesome if I can find a
fix or a workaround.
Clara