I need to allow a https address thru BM without having to authenticate.

I've created a access rule allowing port 443 along with the domain name,
but I'm still prompted to authenticate when I try and access it.

I have another rule setup to allow aceess to the http site and I can get
straight onto it.

I've tried different variations on the rule, but nothing seems to help.

I've also had a colleague of mine try the same thing on another BM box and
he gets the same issue.

I'm using BM 3.7 SP2.

Any ideas ?