Error Compiling in Robohelp 8 for Word

I get an error saying the Folder or File Name is invalid when I attempt to compile a project. I can start a new project, save, open existing, save, etc. all with no problem. However when I click the Compile button I get this error. I have tried solutions that I've seen - deleting templates, registering the dll; checking the com add-ins, etc. all to no avail.

I would truly love to get away from RoboHelp for Word but cannot given our present environment. Any suggestions/help is greatly appreciated.