Norton Antivirus 2009 and Microsoft SQL Server 2005 timeout problem

Hello I just upgraded to NAV 2009 16.2.07 on windows xp with service pack 3. The problem I have is if my system goes idle for any amount of time (a minute or 2) my connection to my SQL server times out. it looks like this.  If I disable auto protect the problem goes away. Any suggestions?

Problem.JPG