Activation nag screen nt going

I have nav 09 on vista sp1 platform.

3 days back i was struck on getting my serial key into my norton account so i contacted tech support chat and they said to click on subscription and then re-enter the key in renew box and press next, it will get activated and norton account will popup and it will store the key.

Well, activation screen popped and said activating and nothing happened, then he added my key manually to my norton account.

 

But now, whenever i open norton ctrl center, activation screen pops up and says to try activation, despite i m having 149 days of subscription on screen.

How to get rid of this nag screen??