localhost does not resolve to 127.0.0.1

i am having weird results when trying to access local web server from browser
when I type http://localhost - it hangs forever. 127.0.0.1 works fine. I
checked my hosts file and 127.0.0.1 localhost is there. I tried to ping
localhost and it does not seem to resolve to 127.0.0.1 - this is what I got.
Any ideas?

C:\WINDOWS>ping localhost

Pinging DB-XPPC [::1] with 32 bytes of data:

Reply from ::1: time<1ms
Reply from ::1: time<1ms
Reply from ::1: time<1ms
Reply from ::1: time<1ms

Ping statistics for ::1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

thanks

dan