hi. so recently i upgraded my samsung galaxy s2 to ICS operating system. all works fine, except that i cannot seem to unlock my locked memos even though i enter the correct pin. it would prompt me to enter the pin and it would accept the pin i enter, but it just won't open my locked memo. it would only bring me back to the list of all my memos, with the locked memo still not open. can anyone please help? many thanks!