Hi,

It sounds to me that a full recap is necessary (it's better to replace all of them at once rather than a few at a time I've found).

Before doing that, however, have you tried cleaning the logic board? Cleaning can temporarily resolve some bizarre and otherwise unexplainable problems.

There's many ways of doing the cleaning. I use the dishwasher method, but you can choose a method that works best for you.

If you are unable to do the recap yourself, uniserver has a recap service. He does a good job, and I recommend him.

c