I RECENTLY HAD A POST IN REFERENCE TO TRBL DIALING INTO AN ISP SINCE 25.40B UPGRADE FNF. I ISOLATED TRBL TO CLOCK CONTROLLER 1. I'VE TAKEN REPETITION SLIPS ON ALL T'S SINCE UPGRADE. (PRIMARY AND SECONDARY TRACKING CLOCK 1). I DECIDED TO SWITCH CLOCKS TO SEE IF SLIPS OCCUR WHILE CLOCK 0 IS ACTIVE. INI INI INI INI.... AFTER INI CLOCK 1 REMAINED ACTIVE. SINCE INI FAULTY HARDWARE HAS BEEN TRYING TO RUN IN THE BACKGROUND (OVL111 FHWR 4. I'M TRYING TO STAY LOGGED ON TO PREVENT THIS PROGAM FROM RUNNING UNTIL THIS EVENING WHEN I HAVE A MAINTENANCE WINDOW FOR OUT OF SERVICE WORK. ANYONE KNOW WHAT THIS BACKGROUND PROGRAM DOES? COULD IT AFFECT SERVICE? I'VE CHECKED ALL MSDL PORTS. ALL GOOD.