Every once in a while we get a customer who has this problem:

Each time I click the download button, it takes me to the screen that says,
"Whoops your session has expired. I tried taking the security levels down,
but still won't work. Is it possible to e-mail me the zip file. I download
music all the time from itunes and wal-mart and have not had a problem.


Why does this happen and why only to a few select customers.
And how doe we fix it?

thanks,