Reputation scan crashed ccsvchst.exe [2011]

Hi everyone,
using NIS 2011 Italian on a Win 7 32bit pc, I clicked to a “full reputation scan”, appeared the window of reputation scan but before he scanned the first file, suddently ccsvchst.exe crashed: “Symantec service framework had stopped working”

I rebooted the pc and NIS seems ok. One click support doesn’t detect anything. Reputation scan now works.
Thanks in advance for replies.