Co-recurisive workflows not starting on second cycle

My scenario is:*

Workflow A - configured to start when a new item is created in List A: Creates a new list item in List B.

Workflow B - configured to start when a new item is created in List B: Creates a new list item in List A.

When I test this i get the following:

I manually create a list item in List A.
Workflow A fires and creates a new list item in List B.
Workflow B fires and creates a new list item in List A.
But a new instance of Workflow A does not instantiate on the created in List by Workflow B.

---edit----- Is this happening because the item created in List A by Workflow B is created by System Account thus not firing Workflow A?

---------edit---------------------------------------

I am aware this is causes an infinite loop there is a pause for duration action set to 1 year in workflow A. So it fires in yearly cycles.

I know sp2 prevents infinite loops being created on the same list but from what i read of the article below suggests this is possible to do cross lists as in my scenario. Link

The answer was co-recursive workflows do not work cross lists as I assummed. The msdn blog link above scenario uses two workflows on the same list. I adjusted my workflows to use the same list.

The error was output to my log files but since logging was not set to verbose i didn't see it.