I upgraded my windows system from 056 to 058, but am unable to sync - even after 12 hours. It's still stick at the same block and I don't know how best to fix this. Any suggestions?
I moved u to alternative currency as you are talking about eth here
they had a hardfork as you should know - best to check in with them what to do and what fork to be on
(I think you have a choice between classic and new)
Exactly like @tungfa said: you are probably running the wrong wallet - Dash-Qt is not Ethereum (or Mist) wallet and doesn't affect it in any way. Just make sure you have the latest stable one for the coin you need and try again.