Miscellaneous Utilities : Why Time Tracking Tools don't work with Desktops

My apologies ahead of time if this is the wrong place for this topic. Its not an issue with Desktops application itself. 

I use a time tracking tool at work called procrastitracker. Procrastitracker (and a few other similiar apps) cannot seem to track any activity in any other virtual destop but desktop 1. What is the reason for this? 

I guess I should post my question in the procrastitracker forum as well. 

Thanks,
Drew Morrissey