My users have started complaining about Revit 2012 pausing (Windows 7 spinning doughnut) for a few seconds. This happens periodically, like every 5 minutes. It doesn't sound like much as I type this, but it is infuriating as it does this 100 times throughout the day. It doesn't appear to be tied to any given action in Revit, panning, zooming, selecting... Only Revit users are mentioning it, so I believe it is not just an operating system/configuration issue. I've run Resource Monitor during a Revit session. Within the CPU category, the Revit process turns RED during the pause.