I recently installed Windows 2000 Pro SP2 on my machine, but PingPlotter and other pinging tools (such as ping, tracert, and pingpath) don't seem to be reporting accurate pings. What I mean is that my ping times either report 0, 10, 20, 40, etc instead of 7, 12, 27. Here's a screen shot:

http://pingplotter.rocks.frozenoven.net/pingplotter.png