Any updates on these checkpoint errors? Sync'd 5 times, erroring...
Brian, I thought I explained in the irc channel.
The error you see is normal and it's good that you see it (it means that everything works as it should).
Your wallet has PoS blocks in it that are invalid.
So, it broadcasts those invalid PoS blocks to the net and the net reacts to it and treats it like a threat.
What you need to do is backup your wallet.dat file and remove everything (including the wallet.dat file).
After your wallet syncs completely, close your wallet application, replace the backed up wallet.dat file and re-open your wallet app.
Then just do the "checkwallet" and "repairwallet" if you see that you have coins missing.
I did that -- the 5 times.... It syncs up, and then has the checkpoint error back after a few hours.