Prompted to remove and re-install Norton Internet Security 2009

Hello ~  I logged on one day and was prompted to go to a symantac page to remove my software and then  to re install it.  I did this and everything seemed fine, however  a few days later I saw the bsod and was told that one of my drivers was having an issue,  I re-booted and all seemed fine, but my norton program was no where to be found.  Any ideas?  During this time I also had my address book on yahoo hijacked and a virus sent to all my contacts.  Not sure if these two are related or unrelated  ~  but either way I update and scan on a regular basis.  

 

Many thanks,  

elgin