Notes keep disappearing

I'M TRYING TO ADD NOTES TO MY HIGHLIGHT ANNOTATIONS, BUT THEY DON'T STICK. I WRITE A VERY THOROUGH NOTE, BUT BY THE TIME I'M DONE, IT'S GONE IN A BLINK OF AN EYE - POOF!

I THOUGHT THIS MIGHT HAVE SOMETHING TO DO WITH ICLOUD TRYING TO SYNC DURING MY NOTE WRITING, SO I DISABLED ALL MY INTERNET CONNECTIONS, BUT IT STILL HAPPENED - POOF!

THIS RENDERS A HUGE FUNCTIONALITY USELESS.

Mac OS X 10.10.2

iBooks 1.1.1