This may be nothing more than old fashioned 51% attack... I am having blocks disappearing from my wallet... blocks with many confirmations... mined hours ago.

If there is a private conglomerate with enough hash-power to take the network difficulty from the 30's into the 100's... 500 plus... that is more than enough hash-rate to launch a 51% attack.

The POT dev team better get to bottom of this real quick as this will completely unravel any credibility that POT may have as a usable currency.