Flash Cs5

[AlvinChacko]

i made thing in flash, i don't know what to call it as, but this thing that there is a word and when u click the audio it says the word, so the problem is when i do next and previous. the first and the second time when i go back and forth, there is no problem, but he third time, it starts to skip like from word 1 to word 3 or like from 5 to 7, i don't know what is the problem, if anyone could help this, that will most appreciated, thanks in advance and i have attached the flash file. here is an example you can test out:
completenotebooksale.com/Untitled-1.html