Problem with Minion Pro

I have a weird problem with the output using MinionPro fonts. The characters "Th" after a period produces a strange output; for example

\documentclass[14pt, a4paper]{report}
\usepackage{MinionPro}
\begin{document}

Testing Minion Pro. The Minion Pro package...

\end{document}


produces the following output:

Testing Minion Pro. fb e Minion Pro package...


Does anybody have a clue of what's happening?

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Everything is fine here, with Lubuntu 11.10 and texlive 2011. –  Sigur Dec 17 '12 at 23:21
Which operating system and TeX distribution do you employ? –  Mico Dec 18 '12 at 0:18
Also, possible font size options for report are 10pt (standard), 11pt, and 12pt. For more sizes, have a look at the extsizes document classes. –  doncherry Dec 18 '12 at 7:01
Thanks for the answers...The OS is WinXP, with MikTeX 2.8 + TexnicCenter. The weird thing is that in my desktop PC this "problem" does not appear! (the OS is Win 7 with MikTeX 2.9 + TexnicCenter + "fontspec" NOT loaded!). I've also tried with 11 and 12pt... –  Anibal Dec 18 '12 at 20:04
Maybe you should update your MikTex to 2.9 then... –  Joseph Dec 19 '12 at 10:53

I bet this is a an automatic ligature -- th.

It's just a default feature of the font. It's not an error. You can disable it with fontspec, but I don't think it's desirable.

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But T+h should produce the ligature shown low left on your image, not the ligature for f+b … –  Speravir Dec 18 '12 at 22:14
Yes. But you should write this in the answer … –  Speravir Dec 19 '12 at 18:49
The fontspec package does not solve the problem. –  Anibal Dec 19 '12 at 20:03
I'd like to keep on trying before updating... –  Anibal Dec 19 '12 at 20:04
The fontspec SOLVED the problem...My mistake...The line \usepackage[T1]{fontspec} produces the right output. Thanks to everybody! –  Anibal Dec 19 '12 at 20:15