Sorry, I probably didnt make it clear in my last post, but 10041 was the "bad" block, the forks appear to deviate after 10042, glad others corroborate that.

Unfortunately I think Bittrex are on the minority chain which we probably dont want to switch back to as the PoW phase isnt complete yet, and we'd have a load of miners upset about losing 4000 blocks worth of PoW mining. How that will affect Bittrex probably depends on how soon they suspended trading after block 10041

Unless someone comes up with a good reason not to I think I will see about releasing an updated wallet later that will definitely sync with the majority chain, as the current version on Github (and I assume the Windows download, I havent tested it yet) will not.