No internet connection through di-624 from laptop

I've had dlink since Dec 07 all was fine for a couple of weeks, after that I have not been able to access the internet from my laptop. I did some trouble shooting by checking all connections,resetting the d link,both work fine. I uninstalled and reinstalled the wireless lan card program for the laptop (7 times) but no link or connection. I tried reconfigureing the wireless setting ,which was mostly guess work. I decided to see if ip adresses were an issue and I am unable to find any adresses at all. Iam all guessed out, what should I do?