Hi Steve. I copied your code exactly and it still outputs only on RB0. I suspect my programmer and/or software is the problem. There is an option "CCP1 on RB3" that works on the 16F818 but the option is "grayed out" when I program the 16F88. I guess it will not allow the use of RB3. I think it's time to get the latest hardware/software from Microchip. Thank you for your help.