@ Before Canada 2014,
In my case, I sent 6 months salary acct and 4 months for pof account.
Salary acct: they want you to prove that you are actually employed by that company, so show us that they have actually been paying you the amount you told cic you were collecting as income.
Updated POF: do you still have that money you told cic you have? So show us an updated statement, doesn't have to be 6 months, but 2 or 3 months might not convince them also, so give them nothing less than 4 months
My opinion tho.