What can cause Drupal to crash Apache? In my local development environment, Drupal keeps crashing Apache when I try to load admin pages. The user pages all load fine, but any admin page causes apache to reset itself.
In the apache error log I get:


Parent: child process exited with status 255 -- Restarting.


The files were all copied from our test server, although I removed all the cached data inserts from the database while transferring it over.

We're running a separate admin theme (Garland for admin, custom theme for all other pages).  The custom themed pages work fine. I haven't found a way to determine if its the theme or the admin pages that are causing the problem.  

I'm using Drupal 6 with WAMP, on Windows 7.

I'm looking for suggestions about what's causing the resets.
In your settings.php add this line ini_set('memory_limit', '128M'); and disable update module.