Hi Sha,
Thanks for your reply!
I checked in to the visits on the site as they have remained fairly consistent from the months prior. I understand the PR toolbar is not updated regularly, and that PR has limited value in the grand scheme of things. My concern is largely on the PR as is the most visible factor at the moment, based on that the 301 redirect "should" have maintained most(?) of the PR with out disruption.
It is just very odd that this would happen with in days of the change, the content has not changed drastically.... this is going to sound like a stretch but, is it possible Google has attributed my root domain against the sub-domain as duplicate content in it's cache regardless of the 301 redirect?
I am just trying to understand the problem, if it really is one, and if there is any good solutions apart from just waiting it out and rebuilding on what we currently have in place now. Everything I have changed was in accordance to the way it "should" be according to Google and the internet at large...
Thanks!