I glad you may have found a solution to the login issue.
Here's what is happening with the 'Mark all posts as read' link:
With version 7.x, I would click the 'mark all posts as read' link on the forum home page and any forums or posts displaying

(for unread messages) would be changed to

(for NO unread messages). This does not always work with 8.0 RC1.
I hope I'm explaining this well enough. Thanks.
Update: I see what's happening. Clicking on the 'Mark all post as read' does not always sync with the current time. I just clicked three times on the 'Mark all post as read' link on this forum and this is what keeps displaying:
The time now is 12:47pm
You last visited Today at 12:42pm
It didn't set my last visit date to 12:47pm.
Edited by JasonPEC - 23 March 2006 at 5:50pm