Ok, this is a real weird one. When I display a page I'm getting an undefined index error. If you click the back button on the browser or the back button on the page, and click the same record it works. Also when the page displays the error, if you click the refresh button on the browser it works!!
This only occurs the 1st time you click on a record to display. After that it works!!!
This code is used several times throughout the site and it only happens here. If you would like to see it in action let me know and I'll give you the site and login and instructions on how to duplicate the problem.