I don't think it's complaining about the UserID area, it's just a poorly arranged display making it look that way.
The UserID is located at 0x200000-0x200007 in that part.

It looks to me that it's complaining about location 0xcc0, which is in program memory.
Try doing an erase and then a blank check.

There's a later toolpack for the 18F devices... maybe try updating it?