Connection problem using Flash Builder when using Flex and PHP integration

HI experts,
I am having an issue with Flash Builder when using Flex and PHP integration. I installed Flash Builder for Zend and PHP. I loaded Zend with sample database and I created the Flex server.
I connected on my file with PHP data service. However, when I went through PHP configuration wizard, I don’t have an existing PHP class. I asked flash builder to generate one using the login information in phpMyAdmin, but I got an error message that looks like this:

It says “Unable to connect to database using special connection information. ” I don't understand what's happening. Can you help me fix this problem?
Thanks!
