Help > Debug > Console > Enter:
Code:
walletpassphrase 9999999
This will unlock your wallet for 9999999 seconds (>100 days) or until you restart the client.
i try this and i get this response :
16:11:04

Error: Error parsing JSON:new
Did you replace secretkey without the brackets with your password?
walletpassphrase xxx 9999999
tried that too ... my passphare is long and has spaces does that matter ?
my PW ended with a # .... i changed it to just letters... then retried and the response line to the command is just empty

is that what it does ?