I am having problems with my Enhanced JDM programmer. I am using it to program 24CXX ics, but I can't get it to read or write. If I use WinPic800 it gives an error message " ERROR No acknowledgement address 0x0000 " I have tested the com port with a loop back test, and that work OK. The green light on the programmer lights up, but no red. I can't get a 5 volt supply on the ic either. Has any one any ideas of what to test next.