Before I perform a restore, I wanted to try something, but I need to know if there is a "main" or "master" or "root" plist file. My plan is to delete it (similar to how mac users "trash their prefs" and see if one the iPhone recreates a new file on it's own, and 2, if it resolves my issues. Basically I think the "main" plist file is corrupt because the phone isn't saving states (ie: on respring it always says I have missed calls even though I've already viewed them, it doesn't save ant prefs I change in settings, and if I move an icon on my springboard from one position to another, on respring it repositions itself back to where I moved it from). I would like to delete the iphone's "main" plist file. Does anyone know where I can find it? THANKS so much in advance!

I am on an iPhone 3G running OS 3.0