Problems Overriding Magento Community Module Controller

Question

First of all, the Answer here is very helpful: Overriding a Magento Controller in community extention

However, despite passing both of the \"tests\" mentioned in the

Answer 1

Your best bet is to drop some debugging code into the standard router (temporarily, of course).

#File: app/code/core/Mage/Core/Controller/Varien/Router/Standard.php
protected function _validateControllerClassName($realModule, $controller)
{
    $controllerFileName = $this->getControllerFileName($realModule, $controller);
    if (!$this->validateControllerFileName($controllerFileName)) {
        return false;
    }

    $controllerClassName = $this->getControllerClassName($realModule, $controller);
    if (!$controllerClassName) {
        return false;
    }

    // include controller file if needed
    if (!$this->_includeControllerClass($controllerFileName, $controllerClassName)) {
        return false;
    }

    return $controllerClassName;
}

Each return false is an instance where the router considers a configured controller and rejects it based on an improper name, not being able to find or include the file, etc.