What was found
UPON ROTATION LATERAL MODE WENT FROM TRACK TO ROLL AND THE VERTICAL MODE WENT TO ALT HOLD. AUTO THROTTLES WENT TO IDLE. THE TAKE OFF BARS WENT TO THE FLIGHT DIRECTOR UPON ROTATION AS WELL. DURING CRUISE WE HAD NO VNAV PATH OR VERTICLE PROFILE AND PROGRESS BAR DID NOT SHOW DEST ETC OR FUEL REMAINING. REMOVED FROM SERVICE. PERFORMED OPS TEST OF THE AUTO THROTTLE IAW AMM TASK 22-31-00-710-801-A. OPS TEST GOOD. PERFORMED OPS TEST OF FMS IAW 34-61-00-710-801-A. FMS OPS TEST GOOD. A/C REMAINS CAT III QUALIFIED. A/C PLACARD REFLECTS CAT III. RETURNED TO SERVICE. COULD NOT DUPLICATE. NO PARTS REPLACED.