Hi,
Joomla ... I'm doing it wrong 
I've just added a 'mycustomcss' file as per this tutorial:
http://www.rockettheme.com/forum/index.php?f=337&t=106162&rb_v=viewtopic
To test that it was working, I added the following code:
#rt-showcase p {font-variant:small-caps;}
I then cleared the Joomla cache and my browser cache and confirmed that the Showcase text was changed to small-caps. So far so good ...
Then I removed the code, refreshed the Joomla cache/browser cache however the small-caps were still present. Firebug shows that this style is coming from http://.../templates/rt_panacea_j16/css/css-71aef3ee7e574137c240981c8b070267.php
Any idea why this is happening? I have Gantry Cache & GZipper turned off.
Thanks, Matt.
(Joomla 1.6 & Panacea Template)