Question : Waiting for a Worker thread

I have more than 100 SQL Server jobs scheduled to run simultaneously and continuosly. Several of these jobs are not running and with the status 'Waiting for a Worker thread'.
Can anyone please tell me what this status means and and how to avoid it ?

I have tried increasing the CPU worker threads value, but did not help.

Also, what is the max. number of jobs that we can run simultaneously or that SQL Server Agent can handle ?

Answer : Waiting for a Worker thread

Have you seen this article from MSDN:
PRB: SQLAGENT Job Waiting on Worker Thread
http://support.microsoft.com/default.aspx?scid=kb;en-us;306457