NOF Doesn't Block Sites

Hello!

I installed today NSM and defined filtering preferences on NOF for my kids windows (7) account.

For a short while it has blocked the sites according to the values in the NOF, but few hours later, by a new login to my kids account, nothing blocked - although the note about NSM monitoring does appear upon logging in to the windows account.

I've tried to uninstall and reinstall NSM, but it didn't help.

I'll appreciate your help.

Thanks,

Thomas