Ok, this is not related to flash communicating with PHP.

My question is this.
One individual is unable to view an application I developed, and he seems to be the only one out of a few hundred. I did a major update, but I do not see nor can find why he is having issues. I nulled out the possibility it was the server because he can view static HTML pages. I may run a test with a basic php file and see if he can view it, otherwise I am stumped.

ANy thoughts, suggestion on how to solve this issue?