When user clicks on a tab in the main view, and attempts to use arrow key to scroll down a page, the tree view is traversed instead, resulting in the next resource in the tree-view being loaded - user is taken away from the resource s/he was looking at.

Repro.

1. Inventory a platform and go to its summary page.
2. Click the "Inventory" tab.  If you've got a lot of inventory, you probably have a browser scrollbar along the side of the browser. 
3. Don't click in the browser anywhere; hit the down arrow once or twice to scroll down the page.
4. View results.

Current results:
The tree is traversed; the next item in the tree view is displayed in the main window.  In my case, it was "CPU"

Expected results:
Focus is not placed on the tree - user can appropriately scroll down the page that s/he just loaded