After much trouble, with Apple and my computer... I have a solution that worked, so I'm posting it for all to learn from.
If you are running 10.3.8, and ever get a -9813 Error or need to restore your root certificate settings, here is the solution:
Go to Applications>Utilities>Keychain...
Alright, I need someone smarter than me to give me some help!
Below, is everything that I know...
I'm on a G4 laptop, running 10.3.8 and iTunes 4.7.1.
My problem popped up approx. 4-5 weeks ago. I'm not sure exactly when, or what I did to cause it. But I think I updated to 10.3.8 from...