F12 KDE display issues

I have been running into display performance issues in F12 KDE. The Kickoff menu, device notifier and panel cashew each take about 5-10 seconds to come up during which time the UI is noresponsive. Desktop cashew, right-click menu, traditional menu, and lauchers work fine. If it is relevant I am using the lastest nvidia drivers from rpmfusion. Has anyone else seen this? -- Mark Bidewell http://www.linkedin.com/in/markbidewell