Art,
There seem to be 3 similar workarounds to accomplish this. You do it by switching users, Bert mentioned using a virtual machine, and I occasionally use logmein. We have a relatively old machine on our network that is not connected to a keyboard or monitor. One reason for this set up is so I can quickly use logmein ignition, and use another instance of AC to open a second chart. An advantage of using logmein is that you can easily toggle between the two charts.
