Strange Spare Parts Battery usage entry, pic attached

[tbhuang2]

So I'm looking in Spare Parts Battery history, specifically Network usage and noticed that there is one thing that completely overshadows everything else, a strange entry labeled "0". I don't know what it is, and when I try tapping it I get an error message saying:

Sorry!
The application Settings (process com.android.settings) has stopped unexpectedly. Please try again.

And it force closes back to the Spare Parts main menu.
Attached is a screen shot. What is this??

Also, I never understood what the red/blue colors signify. Could anyone please explain?

 

[WallaceD]

That is very curious. I checked Spare Parts on my Hero, and I have the same "0" entry uner Network Usage. When I click on it, I get the same FC message as you did.

I'm running a completely stock 2.1.

I Googled this issue, and others have experienced the same problem as well. (Example: Spare Parts Question - Android Forums.) Looks like it could just be a bug.