NAV2010 update 'funnies'

Yesterday I ran Live update and got a 60mB+ download, one component of which installed itself as "C:\Program Files\Norton AntiVirus\Engine\17.5.0.127\uistub.exe". Generally, everything is working fine except that

 

(1)  the task bar icon is showing the 'at risk' symbol. When I ask it to fix the problem, it lists 'intrusion prevention' and says 'not fixed' (it was fine before the update).

(2)  The outgoing email progress bar has disappeared. It disappeared after an upate to NAV2009 but reappeared when I updated to NAV2010. Now it's gone again.

 

Any answers please?