Norton is nothing but trouble and also a memory hogger. AVG and ZA are the best about and also free. I would suggest you used them but do a google search and find just how to remove Norton (and it ain't easy) cut your losses and opt for the free stuff as vehelpfulguy and I suggest and I think your IE problems will sort. Sometimes with IE problems it pays to uninstall/reinstall. Just click on start, control panel, add/remove programs, and click on the left under add/remove windows components. You will see IE there so uncheck the box and remove it, and reboot. Then go back through the same sequence, check the box to add it back and often this will sort out the problem. before you do either create a restore point.