I've got Dell Support Center 3.05 installed on both my laptop and desktop.  Periodically, a notice pops up warning me that there are some critical updates ready to install but when I click on the alert, it just takes me to the main landing screen of the support center.  When I check the downloads and drivers area, there are no updated files.  Where is the support center trying to direct me and how am I to know whether or not I have the latest version of each file?