A.T. & T. IS OFFERING A QUARTER MILLION DOLLAR REWARD, FOR INFORMATION THAT LEADS TO THE ARREST AND CONVICTION OF THOSE RESPONSIBLE FOR VANDALIZING A FIBER-OPTIC CABLE IN GILROY. THAT VANDALISM CAUSED AN INTERRUPTION IN PHONE AND INTERNET SERVICE TUESDAY FOR MANY CUSTOMERS. THE FIBER-OPTIC CABLE WAS REPORTEDLY CUT IN 2 SPOTS. SERVICE WAS COMPLETELY RESTORED BY 6 A-M WEDNESDAY.