Hi, >Turn the ERASE ALL BEFORE PROGRAMMING option on. >> ERASE_OPTION=3D0 >should be >> ERASE_OPTION=3D1 >Friendly Regards >Octavio Nogueira AHhhh that did it :^) = Strange anyway, I tried this the other day by clicking in the = option box for 'erase all before program' but without any luck ( it still programmed the entire code space ) however it seems that the settings in the mplab.ini files OVERRIDES thoose in the project. So when changing in the ini file it worked. MANY thanks, /Tony Tony K=FCbek, Flintab AB = =B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2= =B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2= =B2=B2=B2=B2=B2=B2=B2=B2=B2=B2 E-mail: tony.kubek@flintab.com =B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2= =B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2=B2= =B2=B2=B2=B2=B2=B2=B2=B2=B2=B2 -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.