I have a 16c55 that have been running for more then a year.
Yesteday I needed to make a minor change in the program.
After reprogramming with Picstart plus it dosn't work.

Now I can't get _any_ '55 to work with _any_ program !
What can have happened ?
Can the picstart plus fail to program just the 16c55 ?
It still programs my 16c74 okey.

/PJ