SharePoint 2007: Timer jobs not working?

Is your Sharepoint Portal suffering from any of the following symptoms?
- Scheduled Audience compilation is not happening anymore?
- Scheduled Index crawll is not happening anymore?
- Scheduled Profile Import is not happening anymore?
- Users Memberships or My Settings properties are not updated anymore?

Clearing the file system cache on all servers in the server farm on which the Windows SharePoint Services Timer service is running.

To solve this, follow these steps:
1. Stop the Timer service. To do this, follow these steps:
2. Click Start, point to Administrative Tools, and then click Services.
3. Right-click Windows SharePoint Services Timer, and then click Stop.
4. Clear the cache. To do this, follow these steps:
    4.1. Open the following folder: %ALLUSERSPROFILE% \Application data\Microsoft\SharePoint\Config\<GUID>
    4.2. Open the cache.ini file and change the value to 1. Save the change and close the cache.ini file.
    4.3. Delete or move all of the XML files.
5. Start the Timer service. To do this, follow these steps:
6. Click Start, point to Administrative Tools, and then click Services.
7. Right-click Windows SharePoint Services Timer, and then click Start.