So back in November, my bitcoin walled (just the basic bitcoin core) give me an error that the chain was corrupt or something along those lines. I thought, 'no big deal, just re-sync up'. But every time I've tried to get it to re-sync, it gets so far then fails again. Even if I start with a totally fresh wallet and no app prefs etc. This is on the latest version of OS X.

Has anyone else had this problem lately? Is it a known issue or is it just me? Any ideas how to fix it?