So then, last week I upgraded to the new version of Zone Alarm Security Suite (version 10.0.246.000) on my Windows XP system. I would add also that I used the clean install method. Since that moment, I have had problems running uTorrent. Specifically, the download speeds are miniscule and the program gradually becomes more and more unresponsive (ie I might click on a menu for it to only appear a minute later). Bringing up the task manager on these occasions has confirmed that it is the process 'vsmon.exe' that is hogging 100 percent of my computer's CPU. As soon as I turn off uTorrent, vsmon calms down again.
I would love to hear from anyone who has experienced this problem or knows of a workaround for it, because the problem is severely limiting my computer's functionality!