Registered on this site specifically to help out with this question.. Hope this does the trick as it solved my issue.
Since I have a corporate email account on my iPhone that requires a certain level of security (complex passcode + passcode required after MAX 5 minutes + auto lock must be enabled), as long as that email account is added to the phone, certain options will have limited choices, and some will be completely greyed out. As soon as i removed that email account, all my options went back to normal.
In my case, I guess i have no choice but to enable the email account, and lose those other options.
Hope this helped,
Armen