Well... it seems to work NOW... (strange)
...but most of the coins I tried to mine yesterday were lost (orphaned).
I mining on my wallet (0.6.6) with ccminer too.
I mining 2 days ago and found 49 blocks, but only 1 give to me 25 coins.
Other blocks is orphan...
It`s a BIG qwestion to devs!
May be it`s "attack 51" on the net of PXC???
I wouldn't get too excited about some nefarious plot to reverse PXC transactions...
As far as I understand it, it's all about relative hashrates and network latency. When you don't have enough of the first, and you're just slow enough on the second, then they're simply hashing blocks faster than you and
beating you to the punch. That's why miners join a shared pool instead of being their own pool (via solo mining), but those higher pooled hashrates should be spread around to more than one pool too, for the similar reasons.
(edit: no, I'm not a dev; that would be ghostlander!)