Hi Eric,
I believe this will help you:
http://support.microsoft.com/default.aspx/kb/955273Quote:
"When you want to increase the time-out value of the login session to a longer interval, you may discover that the time-out value is not configurable in the Whale Communications IAG configuration tool. However, you can increase the time-out value of the sessionTimeout parameter in the
LoginTimeout.js file. This file is located in the following directory:
von/InternalSite/scriptsBy default, the value of the sessionTimeout parameter is
120000 milliseconds (two minutes). Therefore, you must increase the value to more than 120000 to extend the login session."
Ben Ari
Microsoft CSS IAG Support
Sammamish, WA