<p class="warning">
If you are using an Intel Mac running OS X and the builtin audio
interface, you must
- first <a href="setting-up-your-system/using_more_than_one_audio_device/">merge
+ first <a href="/setting-up-your-system/using_more_than_one_audio_device/">merge
its separate input and output devices into a single "aggregate
device"</a> before Ardour will be able to use it.
</p>