Not usually. I would have one of your users look at the task manager to see what process is eating up the CPU. Chances are you might find that if it is Altiris related, it has to do with something that is scheduled to run (i.e. inventory, or some other task). Anthony is right though, a slow connection should not translate to high cpu utilization. My gut feeling would be something else is causing this and the end users are blaming the last thing I.T. did to their computers (which is typical in most companies).