SW 2011 SP2, Windows Taskbar Preview not working

An engineer just demonstrated some strangeness to do with the Windows Taskbar Preview in Windows 7 x64.  We just deployed this system running SolidWorks 2011 SP2.

When hovering over the SW application icon on the Taskbar, it seems to lose all the previews of the open files.  Maybe there are 4 files open, but only 1 preview displays.

There also seems to be some required wait time before clicking on the preview or else the SW window does not open.

I saw similar issues reported for SW 2010, but is anyone still experiencing on 2011?

SolidworksUser Interface