MYSQL not recognizing user and password in PS3

I am using PS3 and I recently had to make a change to the mysql user and password. I updated the new user and password in the Connections folder and the site is showing most pages fine. It's not until I try to view a product in the front end (Products_Detail.php) that I get an all white page with the following:

Access denied for user 'us7nick_****'@'******' (using password: YES)

I have quadruple checked the user and pass and even re-entered it a couple times. I still get the same message.

I suspected it might be a privilege thing and checked to be sure all privileges were enabled with the exception of EXECUTE. My host informed me that the only privilege that can't be enabled is EXECUTE and said it was a security issue.

Any help would be greatly appreciated as this sits on a live active e-commerce site and needs to be remedied ASAP.

Thanks,