no document is created when siunitx is loaded

I wrote a large part of my thesis with MiKTeX 2.9 using siunitx for all units in the text. Now I did an update of MiKTeX 2.9 and suddenly no document is created any more although no error appears. After a while, I found the MWE:

\documentclass{scrartcl}
\usepackage{siunitx}
\begin{document}
This is my text
\end{document}


Within the MWE-folder, only a .log file is created, but no other files like .aux, etc. As I already mentioned, no errors or warnings are shown. Does anyone have any idea what's going wrong here?

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We are going to need to see a log listing, or at the very least what \listfiles gives. –  Joseph Wright Dec 5 '11 at 19:32
@Anja: Do you use the editor TeXnicCenter. Maybe you need additional packages are loaded by siunitx. This is a bug of TeXnicCenter. Try an other editor like TeXStudio. –  Marco Daniel Dec 5 '11 at 19:33
@Anja: Which editor do you use? –  Rainer Dec 5 '11 at 19:45
Indeed I am using TeXnicCenter. I just found on the MiKTeX website that this is a known bug, as Marco said. The solution the website suggested worked indeed - I simply changed the MiKTeX option for "install missing packages on the fly" to "yes" rather than "ask me first". Now the MWE is working. Thanks to all of you for your hints! –  Anja Dec 6 '11 at 11:21
For future reference: It would have been an obvious choice to include the actual message "GUI framework cannot be initialized" as part of your post in the first place. This comes from examining the .log file. –  Werner Dec 6 '11 at 16:56