IE7 SOP issue

Hello all,
I need a little help here as javascript is not my strongpoint. We currently use a website to access our email (this exists inside the network portal). Accessing the site is not a problem. It's accessing one particular piece of a page that's causing problems (It's basically a couple buttons which allow the user to change some email options).
Now, when I use IE6 or FF, it comes up fine. When I use IE7, I keep getting a "permission denied" error and the buttons will not show. I've been working on this for 3 days to no avail. It seems like it might be a Same-Origin Policy issue from what I could understand. I printed out the script for this particular button menu on the site and it keeps stopping on:
main = parent.main
I've tried the User-Agent utility so that IE7's user-agent string shows as IE6 but no luck. Is this something I can workaround via a change in the registry?, Group Policy? or does the script need to be changed on the site to accommodate IE7?
Any help would be greatly appreciated guys. Thanks.

Have a look at IE7s new security features. I recall seeing this behavior in our lab environment when it was in beta. In my case, code changes were the ticket to success. I think you may want to revisit how you're serving up the buttons.

--TH13

thehorse13,
Yeah. I kind of suspected that the site itself would have to be coded to accomodate IE7. I think something inside the IF loop (that determines the browser type) needs to be fixed. Thanks anyway though.

We had a similar problem with OWA (Outlook Web Access) and IE7 that
involves updating the certificate on the mail server. My workaround was
to install Firefox, with which OWA worked fine. Might try another browser
as a workaround.