I am migrating from PHP4 to PHP5

I have this in my .htaccess:

php_flag display_errors on
php_value error_reporting 2039

Which used to show all errors.

I am still getting some errors but I used to get an error when I called a function that was not defined, but now it stops where it is at and send the client everything up to the error and nothing after. With no error message.

Here is what phpinfo is telling me:

Directive   Local Value Master Value
display_errors  On  Off
error_reporting 2039    6143

I would like to be able to see my error messages for trouble shooting purposes.

Can someone tell me what I need to do? Thanks!!