Which agent are you runing? Both the UD and BOINC agents have likely been upgraded several times since you started crunching. It would be a good idea to install the newest agent found here http://www.worldcommunitygrid.org/viewJoinNow.do No need to uninstall, just install the new ones overtop the old ones.

ckretzma: We have noticed that a few machines are uploading more data than needed when the work unit has aborted in some unusual manner. We have not been able to reproduce this by killing the research process, or making the machine run out of memory or disk space. Other machines processing the same work unit don't ever seem to have a problem. We are wondering if there might be some new windows configuration item (like DEP) or some new firewall / antivirus / antyspyware product feature which causes these unusual work unit terminations which somehow make the UD agent return extra large amounts of data. If you see this happening again, do you have a way of finding the particular machine doing it and checking on it to see if it has any problems and what kinds of firewall... products might be running on it? Perhaps an overnight run of a memory and cpu checker might be good also: using tools found here. Please send me the device ID of the machine (see preferences window - checkmark icon) in question and the time at which it happened so that I can check what it has returned. Thank you.

ckretzma, if not zombies, bots or trojan virusses, u might consider switching from UD agent to BOINC, which allows the remote viewing of all your machines progress.....the answer could come out of this thread...restricting Agent Bandwidth.... Profile Upload/Download speed values