AppleScript Question - NetAuthAgent and mounting volumes automatically at login

Hello,

I put together an Automator script to mount network volumes on login, which works fine, except that when the script runs, a dialog box comes up that says "NetAuthAgent wants to use the login keychain. Please enter the keychain password."

At this point if I enter the administrator password, the script completes. Is there a way to avoid this step? I want my network volumes to mount automatically. I don't want to be prompted for a password. Is there another way?

Thanks.