Hi, I have Yosemite and just installed iOS 8.1 on my iPhone 6. When I go to Settings > Messages > Message Forwarding > (turn on my mbp), it asks me to enter the code that is shown on my mac. No code is shown on my mac and thus i cannot activate sms forwarding on my mac. I've tried restarting my mac and my iPhone but no code is showing up on my mac. Anybody else having this problem?