constant Keychain prompts

I work in IT in an enterprise environment at a local university. We have several Apple computer labs on campus, running 20" iMacs with OSX Mavericks 10.9.2 on them.

I have setup Magic Triangle with Open directory and Active directory services for login. I use the Workgroup Manager to mange Group Policies for our Apple Labs.

One thing that is annoying our users out of their minds is the CONSTANT Keychain prompts that keep appearing when a user logs in. Is there a way to permanently disable these through Group Policy or some sort of script? Keychain pops up and prompts for passwords to "Local Items" and "Login" keychains constantly, to the point users are almost discouraged to use the labs.

Any help would be appreciated!!

Thank you,

A Proud IT Lion!