I have taken lessons 1-5 and have been able to add the words to "my flashcards" at the end of each lesson. The next day when I logged back in for more lessons I can not add any flashcards from this series. I have not tried other series since I do not want to get the order mixed up. I am using Windows 7 64bit. I have tried on Firefox and on two other computers with no better results. I am hoping this is temporary.
Please let me know if there is a solution to this problem.
PS I have now tried adding vocabulary from other lessons and from the wordbank and can not add any I have tried so far.