Where are rendering errors recorded?

[Michael 'Mickey' Sattler]

Is there a location to which rendering errors are logged?

If I render a site how can I ensure no errors were hit without using 
grep on the file hierarchy?

Thanks.

-- 
Michael "Mickey" Sattler, Geek Times   <mailto:michael at GeekTimes.com>
San Francisco, California, USA    <http://www.GeekTimes.com/michael/>

I was born not knowing and have had only a little time to change that here
and there. -- Richard Feynman (1918 - 1988)