Getting rid of "Application error (Rails) " Apache + Mongrel

All,

When unexpected errors occur, we see a page with just “Application error
(Rails)” in our production environment (Apache + 3 mongrels).

How do you change the display to show something decent.

It doesn’t appear to be 500.html in /public, since the message is just

“Application error (Rails)”

not

"

Application error

Change this error message for exceptions thrown outside of an action (like in Dispatcher setups or broken Ruby code) in public/500.html

".

Or am I supposed to change /public/500.html and I’m just missing
something?

Seems to me like the error occurs outside of the app.

Thanks,
Wes