Can't type @ in a loaded SWF form

I have a form, which is loaded via the SWF transition method so talked about on this site. The form itself used Cyberathlete’s percentage scrollbar too (if that makes any difference).

So that you can use the input txt fields I have embedded characters into the text fields but for some unknown, and rather annoying, reason - I CAN’T type the @ sign. I really really need the @ sign because I’m getting a user to submit their email address.

Has anybody encountered this before? I’m at my wits end.

Thanks.