Syntax Highlighter Error
If you are receiving extra span classes showing up when trying to use Google Syntax Highlighter for WordPress, it is probably because you have Infolinks installed on your website/blog. So hopefully this will save you from banging your heard for twenty minutes. It is even hard to find using Firebug.
Extra code showing up:
[vb]<span class="IL_AD" id="IL_AD2">[/vb]
To stop this from happening, and still be able to use Infolinks, you can use the two following tags to turn off Infolinks and turn it back on.