No problem.
When the board is installed, it generates much of the values assigned to everything automatically. In this case, you have cookie settings which really only consist of two input values: the cookie name, and cookie domain, which of course is the same as everything else; rigorousintuition.ca. Apparently, when the values were generated, the script installation(Blue Host's) messed up and added a 'www' to the cookie domain, which caused all these problems.
This is one of the reasons that the phpBB devs do not support scripted installations of their software, but Blue Host had the current version, and time was a factor for me(I did all the installation/configuration on my daughter's B-Day and the wife was raising hell), so hopefully that's our only boo boo, which so far seems that way.