Norton AntiVirus 2008 3 - User to NAV09EN

I purchased NAV2008 3-Users.  I installed it on 3 seperate computers all running XP PRO SP3 with all the MS updates current.  A couple months ago LiveUpdate pushed NAV09EN to the three computers.  It successfully installed on 2 of the 3 computers.  Right now the 2 computers are running perfectly, but the 3rd one will not install the update.  I uninstalled NAV2008 from this computer and reinstalled NAV2008.  LiveUpdate then pushed NAV09EN again and I got the same result.  I get an error box that wants to send Microsoft an Error Report.  Here is the Error "Norton AntiVirus has encountered a problem and needs to close.  We are sorry for the inconvenience."  Also if I click on error detail this is what is in the brief detail.   AppName: nav09en.exe     AppVer: 16.0.0.125     ModName: instui.dll
ModVer: 5.0.0.218     Offset: 000f4159

How do I fix this problem?