Screwed up Internet

So heres my problem, my home uses wireless internet, and my main desktop can conect to the internet, but if I go on the browser no pages will be able to load, if I use aim or msn they wont conect, and if I try to play any games they wont conect. Now other wise all the other computers in the house dont have this problem, So I dont know what the problem is computer or something in the internet blocking my acsess.

 

Roll back any change made to this particular computer that's not connecting. You can try these as admin:

start, run, cmd
ipconfig /freshdns
netsh int ip reset c:\resetlog.txt
restart pc

http://support.microsoft.com/kb/299357