I'm a little worried that there is no pre-purchase way of direct contact with the company for customer service, but I'll try here. I'm in the trial period with the professional edition and it will fit my needs. However, it will need to be installed and operational on two different computers (not to be used at the same time) and one will be retired, so it will need to be uninstalled and installed on a new computer. 

Is this going to be an issue? Had problems with this sort of thing with other software. 
Thanks