VPN SecuRemote error

A few weeks ago I had a Blaster virus which I removed per the instructions from Microsoft/Symantics web sites.  Since that time, when I boot up I receive the following error Messages:  "VPN SecuRemote Internal Error", then "Error  you have no rights to access hosts file. Please contact your system administrator".  I am using Windows XP Home Edition, logged on as Administrator. Also since that time, I am unable to connect to any of my host computers using PCAnywhere version 11.0 (TCP/IP settings). I get the message "unable to connect to specified device".  I have searched both Symantics & Microsofts web sites and do not get a hit for any of the above error messages.  Does anyone have any suggestions?  Thank you in advance for your help.