First of all this is Vista not XP, so I don't have the Run command isn't there. However I can run a command window, and ping Google.
Also, it isn't my system, since I can connect to any website via other browsers (i.e. Firefox).
However, here is what I get from the ping you requested.
Pinging
www.l.google.com [216.239.51.104] with 32 bytes of data:
Reply from 216.239.51.104: bytes=32 time=25ms TTL=239
Reply from 216.239.51.104: bytes=32 time=14ms TTL=239
Reply from 216.239.51.104: bytes=32 time=18ms TTL=239
Reply from 216.239.51.104: bytes=32 time=14ms TTL=239
Pinging statistics for 216.239.51.104:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip time in milli-seconds:
Maximum = 14ms, Maximum = 25ms, Average = 17ms