So I got a couple 12f629's and i have been trying to flash them, but to no success. I am using icprog with a an olimex pic-P8-1 programmer, which is connected to a usb-to-serial connector on my laptop.
I keep getting a verify failed at 0000h error every time I try to program. i never get this when I read the chip, or even flash with the read data.