Can't upload 5mb file. Need help.
 

I got a forum but none of the members can upload anything larger than 2mb. I already tweaked the php.ini file and restarted apache. It appears the changes in php.ini is not taking effect. What could be causing this?

First of all check the time-out settings in your php.ini.
They might be too small to allow the full uploading.
Also, posting your php.ini and httpd.conf would be helpful.

This problem is fixed already, php.ini file in wrong location.