Warning: Large valid fork found

Hello, I was getting a "Chain state database corruption likely" warning in my bitcoin logs, followed by a drop to safe mode. So I decided to clear the ~/.bitcoin folder, gill pull to the latest, and re-download the blockchain.

However, it is happening again:

Code:

CheckForkWarningConditions: Warning: Large valid fork found
forking the chain at height 209249 (00000000000004b59c50942a44245f83ab3ee96fad06a5e5a9f36fde8c514dcf)
lasting to height 234725 (00000000000001a0dacd1542c69c7060aec6714f370ee65ffd89c53b77e5336c).
Chain state database corruption likely.

There haven't been any outages during the download (it has only been running a few hours), the machine is fine.

Any ideas what might cause this, or can the warning be ignored?

I get this in getinfo:

Code:

"errors" : "Warning: The network does not appear to fully agree! Some miners appear to be experiencing issues."

This is on bitcoind 0.8.4, the problems seemed to start on 0.8.3

Thanks,

Paul