What is the exact RA model number?
Was the Recovery successful? Was SP2 included?
What applications did you install?
Was Norton supplied by Sony or did you purchase it separately?
Were things OK before installing Norton?
I would uninstall it just to see if things change:
Removing and reinstalling Norton Internet Security, Norton AntiSpam, or Norton Personal Firewall (2006/2005/2004 versions)
http://service1.symantec.com/SUPPORT...on_nam&seg=hho
Also during these processes removing the external hard drive is a good idea.
Also you might check your Event Viewer to see what was freezing up:
Look in your Event viewer: rt. click My Computer then click Manage then Event Viewer.
Or: Administrative Tools/Event Viewer or Start/Run/ eventvwr
Open the system as well as the application tabs & look for red
X errors. Click error line for details.
Post back the source & event id & Description especially of errors that seem to coincide with this issue.
Also check the Information lines that might coincide with this issue.
How to view and manage event logs in Event Viewer in Windows XP