+
+>> It looks like teximg uses some less standard LaTeX packages. (see line 100 of Ikiwiki/Plugin/teximg.pm in the Ikiwiki source.)
+>> A quick work-around for an end-user would be to install the 'mhchem' LaTeX package (look in [CTAN](http://www.ctan.org/) ).
+>> A medium-term workaround would be to replace 'scrartcl' on line 100 with 'article', and delete line 101 in the teximg source.
+>> Longer term it would be nice to give teximg a configurable preamble.
+>> Hrm - maybe that configurable preamble should be a [[todo]]? -- [[users/Will]]
+
+>>>Yes it works. Thanks. I am writing some code for examples.
+
+