I have one computer in my office that's having strange connectivity problems. If I try to go to, say, "google.com" in IE, it will fail to find the server. If I do an "nslookup google.com," the DNS lookup works fine, and it gets an IP address... and if I then put the IP address into IE, it connects just fine.
It's not just IE... other programs have trouble too. nslookup, however, works just fine every time.
I don't see anything relevant in event viewer. ipconfig /all shows the DNS servers and everything else correctly. I've tried ipconfig /flushdns and ipconfig /registerdns, but neither helps. Of course I've tried rebooting, too. Other computers on the network with the same configuration work fine. This one just started malfunctioning a few days ago.