Hi Jean,
This thread is fine - sometimes it takes me longer to find a problem if it is added to an old thread, so when in doubt, create a new thread.
Pin Palette crashes are usually caused by problems with the .txt file defining the pins. If you know which pin file you had active - probably your paint samples, perhaps you could email it to me and I'll try to recreate the problem. This could also be a new problem with 64 bits only.
In the meantime you are OK with using the 32 bit version?
Mike