Hi... i just finish my DT001, i use two 9 volt batteries to run the programmer and seems to working ok. but once i read the 12c508 blank chip, it gives me 3FFF on all location. i did read the feedback from the dontronics site, but i dont understand, because i dont have a 470pF capacitor from RB7 in my board and the resistors is not in the same lines of RB6, are they talking about the old board or what? or i need to change teh r10 & r11 to lower value resistors. will this damage the board. also, i am using my MMX 233 computer to run the DT001, will it be too fast. what type of machine will be suitable ? and i am using the the ProPic program and it say "writing error in mem0" and the other program say "verify error", so is there something wrong with program that i download from internet site. any helpful information will be great... Tom ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com