FSDB File Meta Data not accurate

I have some folders on an FSDB (Windows NT Share). When I view the files, the modified date is correct. If I view the documents via the portal, the modified date is older than the date shown via Windows explorer. If I click the action Icon and select details, the information is the same as the Window share. Once I close that window, the portal refreshes and now the date is updated.

Please view this Screenshothttp://www.rquackenboss.com/SharedFiles/File_modifiedDate.png">Screenshot> for a better description of what I am talking about.

Can someone explain how / why the two dates are not in sinc?

Thanks,

Quack