Thanks for your reply Rick,

I've added the location where the files are saved to my 'allowed' list, and it
doesnt seem to have an affect,

It's a final slide of a presentation, and on this slide i've got a click box
which is used to send a mail. This works fine. I've tried using both a click
box, and a button to launch this webpage, but nothing happens when i preview in
a browser. When i open it through Captivate it works perfectly,

Do you have any other suggestions as to what may be the problem,

Thanks!!
Charlie