Deactivation Unsuccessful

Hi
I deactivated Simple Access using administer-simple access-deactivate and then deselected the module from use.
This is causing all registered users to get access denied messages for all existing content.
Even if they create new content, they can submit and are unable to view it after that.
I have even deleted old nodes (since this is a test url), but the issue is with new nodes being added as well.
I viewed the node_access table and see entries like this:

+-----+-----+---------------+------------+--------------+--------------+
| nid | gid | realm | grant_view | grant_update | grant_delete |
+-----+-----+---------------+------------+--------------+--------------+
| 1 | 0 | simple_access | 1 | 0 | 0 |
| 2 | 0 | simple_access | 1 | 0 | 0 |
| 3 | 0 | simple_access | 1 | 0 | 0 |
| 4 | 0 | simple_access | 1 | 0 | 0 |
| 5 | 0 | simple_access | 1 | 0 | 0 |
| 6 | 0 | simple_access | 1 | 0 | 0 |
| 7 | 0 | simple_access | 1 | 0 | 0 |
| 8 | 0 | simple_access | 1 | 0 | 0 |
| 9 | 3 | simple_access | 1 | 0 | 0 |
| 9 | 4 | simple_access | 1 | 0 | 0 |
| 9 | 5 | simple_access | 1 | 0 | 0 |
| 9 | 6 | simple_access | 0 | 1 | 1 |
| 9 | 7 | simple_access | 0 | 1 | 1 |
| 11 | 0 | simple_access | 1 | 0 | 0 |
| 11 | 6 | simple_access | 0 | 1 | 1 |
| 12 | 0 | simple_access | 1 | 0 | 0 |
| 12 | 6 | simple_access | 0 | 1 | 1 |
| 14 | 0 | simple_access | 1 | 0 | 0 |
| 15 | 0 | simple_access | 1 | 0 | 0 |
| 16 | 0 | simple_access | 1 | 0 | 0 |
| 17 | 0 | simple_access | 1 | 0 | 0 |
+-----+-----+---------------+------------+--------------+--------------+

I'm not sure what to do to enable access to all content.
Would appreciate any help.
Thanks & Rgds
Sita