I doubt you have an IT policy on the device, but check:
options > security options > general settings > scroll down and see what is listed under services
Hopefully it will read ***no services***, but some applications it seems do install stuff that shows up here (Windows Live put something on my 8820, for example).
If no IT policy, the only other thing I can think of is to resend service books. See How do I resend my service books? - BlackBerryFAQ