I've got 2 issues at the moment - hopefully some of you know the answer

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a) My wallet isn't synchronizing anymore (and thus not staking)
It just goes to 88% and then it stops, keeps hanging there.
Restarted and tried 'repairwallet'
b) on Bittrex BLOCKS is still disabled. You can buy and sell but you can't transfer it to an address (or put BLOCKS into bittrex for that matter)
a). Save your wallet.dat file and delete everything else from your Roaming folder. Restart the wallet.
b) Blocks remains disabled on Bittrex until the official market opens. This prevents withdrawals/adds to their wallets until the ITO conditions are met. Also after the offering ends, there will be a 48 hr window where a BUY WALL will be set up, so those that want out can get out.