I have a site that has good pr and over the last 24hrs the site has been completely graybarred twice .... hope the pr is going to come back ..... there is also something very weird going on in WMT link section
If it has updated I am very dissapointed, I only recently started work on a TBPR1 site and have produced 10 new inward links plus 10 more from magazines via a PR campaign. I was definately hoping to go to TBPR2.
No. because the drop already occurred long before it showed up on the toolbar. Also there are only 11 visible values that are possible on the toolbar, from zero to ten. But PR is actually calculated to many decimal places. So it's unlikely that you really dropped a whole point, you may have dropped from 3.002435 to 2.99723.
Not only that, but PR is relative to the entire web. As the web grows and more pages get published, the PR scale gets sort of "compressed" - so the toolbar drop may just be reflecting that and not a problem with your own backlinks.