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Ok thanks I just checked and it green now but it says estimated time to earn a reward is 1678 days! lol over 4.5 years ha ha. Not really sure what that means though.

Now that I have the staking icon green should I go back and lock and unlock the wallet again but have the box ticked "for staking only" or should I keep the wallet fully unlocked at all times?
Cheers!
Ian

have the box ticked "for staking only" or should I keep the wallet fully unlocked

it does not matter