Melzi with no heat-bed temp

Hi,
I am just about to start using my newly built mini Kossel. I use a Melzi board with Marlin FW. My problem is that the heatbed temp is zero. If I switch the hot-end sensor and the bed-sensor I can verify that the sensor itself works fine. I have also followed the signal to the pin of the ATMEGA1284 and no problems there. The voltage at the two sensor inputs are the same so there are no shorts etc. The thermistor is configured the same as the hot-end.
Any clues? I have checked pins.h etc and cannot find anything wrong.

Any help is appreciated!

Thanks,


Jan

Ok, forget about the above. Me being an Arduino-agnostic didn't really know how the bootloader works. When AVRdude says "I'm done" I didn't bother looking further into what was done. Most of the cases it was a timeout as I didn't know when or how long the bootloader was available after reset. The LED doesn't flash so I guess I got it right by sheer luck a couple of times but not when I enabled the heatbed sensor...
Oh well, one learns...

/Jan