Php data is not loaded at random instance

Hi,
im new to the posts. any help would be appriciated.
im trying to build an application where it load data dynamically from MySQL.
the application work perfectly on Flash 8/cs3 but sometime it doesnt load the data.
this is the page:


application is called Take a Poll;

it works on some, and doesnt on others- But
this might help:

If i delete the browser history then it loads fine.(not files, just history)

Im sure someone might have come accross this one.
Any AS Experts???