I have built Severino version of Arduino (http://arduino.cc/en/Main/ArduinoBoardSerialSingleSided3).
It has serial port for communication with PC and ISP connector for direct programming.
I have also built a simple parallel programmer (http://gopchandani.wordpress.com/2007/01/18/the-atmega32-programmer/) and successfully programed Atmega8 controller.
Programm was working fine, but the timings were wrong ( delay(1000) was much more than 1000ms) so I programmed fuses for 8 MHz internal RC oscilator. After that the timings are OK, but I cannot access controller with Ponyprog any more.
If I want to access the Atmega chim I have to reset the fuses to the factory settings (for that I have another device which is built for that purpose only - FuseBit Doctor - http://diy.elektroda.eu/atmega-fusebit-doctor-hvpp/?lang=en)
Can anyone haelp with this?
What is the reason that Ponyprog is unable to recognise Atmega8 chip whan it is clocked with 8MHz?

Best regards

find the file boards.txt on the \hardware\arduino\

change the paramters like below...

atmega8.build.f_cpu=16000000L
to
atmega8.build.f_cpu=8000000L

restart arduino soft.. enjoy

hI WHAT PROGRAMMER CAN I USE TO READ A ATMELGAL8-8PU WHICH HAS ALREADY BEAN FUSED SO I CAN REWRITE TO A NEW CHIP
THANKS MIKE