Firefox 9.01 will not start, has a dialog box saying it is still running.

Does anyone have any ideas with the following Vista firefox problem.
Firefox 9.01 will not start, has a dialog box saying it is still running.
There is no occurance of firefox in task manager.
I have uninstalled firefox and reinstalled both from
desktop and safe mode in vista.
I have removed all firewall instances.
I have tried with firewall shutdown
Still have the same problem

See:
*https://support.mozilla.org/kb/Firefox+is+already+running+but+is+not+responding
*http://kb.mozillazine.org/Profile_in_use
Make sure that you still have the default profile as listed in profiles.ini
* http://kb.mozillazine.org/profiles.ini_file

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