a problem with Microcontroller

[colo]

First of all , I used the circuit shown in the link :

http://www.dprg.org/tutorials/1998-04a/hb6.png

when my PIC fails ( which mean programmed but not execute ) , I turned to H-Bridge ( SN754410NE ) , and the same problem becomes

I made a program that make all pins to output , but nothing happens

It programmed with no errors at all using winpic and IC-prog , but when connect it to run the program it did not work at all

I did not think it is dc motor driver because I used transistors and H-bridge

but what is really happend , I still have no idea !