Queen ... a couple of links you might read through ......
http://service1.symantec.com/SUPPORT...03120315224606
also .....
http://forums.majorgeeks.com/printthread.php?t=43732
updating seems to have solved it for 'myze' who had the same problem as you ....
is your 'Automatic update' set to "ON" ??
ps. I know lots of peeps who have run Norton products for years with no problems so don't throw in the towel
