I-485 passed pocess date.Help!

Mu I-485 was received date on Jan. 22, 2002 at Nabrska center. It already passed their process date, May 31, 2002 for more than three months. I called to check. They sent me letter state that pending for security check. Anyone knows how long it takes. Do I have any option to make it happen sooner?

I already did twice fingerprints. The 2nd fingerprint is going to expired in Jan. 2005. I guess ccording the way theu are handling my case, I may be required the 3rd fingerprints. It affacts my life and career. Very disappointed.

Any help adn suggestion is appreciated.