A few days ago, I decided to try out ConTeXt (just for fun), but ran into the following problem. Running the 'context' command on

\setuppagenumbering[location=] \starttext \startformula \int_a^b f(x) \, dx \qquad \iint_D f(x,y) \, dx \, dy \stopformula \stoptext 

produces the following output, with very strange spacing:

(With 'texexec' things look normal, though.)

Why is this, and how can it be fixed? I'm a total newbie when it comes to ConTeXt, so apologies in advance if I'm missing something obvious...

System info: Arch Linux with most texlive packages installed, but running a locally installed ConTeXt in my home directory, as described on the ConTeXt wiki. I tried both beta (current version: 2013.11.16 12:43) and stable (current version: 2013.05.28 00:36), with the same results.