I have all errors turned on (error_reporting(-1)) in Drupal, but for some reason most errors do not come through in the logs or on screen. I can replicate the problem by simply changing a function name to something else, and I would expect to see a function doesn't exist error, but I just get a white screen. I have tried replicating this outside of the Drupal framework and I can't - so it leads me to believe it isn't my setup of PHP (Zend Server/Apache2/PHP/Windows) but is in Drupal somewhere...
Any ideas anyone?