Why IEEEtran is blurry with XeLaTeX but not with PDFLaTeX, and how to fix it?

Question

The question is pretty simple.

Compiling this code with PDFLaTeX

\documentclass{IEEEtran}
\usepackage{lipsum}
\begin{document}
    \lipsum
\end{document}

gives me back

whereas compiling the same code with XeLaTeX gives me back

I'm curious why this happens, but more importantly, I'd like to know:
How can I force XeLaTeX to avoid doing whatever it does that makes its output render differently like this from the PDFLaTeX output?

In case it matters, I'm running this on MiKTeX 2.9 (Windows).

Answer 1

I have no idea why this happens, but it seems like the mere presence of the file

C:\ProgramData\MiKTeX\2.9\dvipdfm\config\dvipdfmx.cfg

causes this issue, even if the file is empty.

Removing the file seems to fix the problem.