I am leidichrr's son, so I will give you some more info:
Any other computer can GET a file from the ME machine fine, but any computer which sends data to it gets slow results.
The ME machine can SEND data fine, but receives it slowly.
All other computers (2 other computers, both running XP) have no problems.
Line speed is 100Mbps.
One XP machine and the ME machine are using the same model # network card - the XP machine works while the ME machine does not.
A switch is being used, but that has not caused problems in the past so I doubt that has anything to do with it. Have tried switching to different ports on the switch to no avail.
Let me know if you need any more info.