Hi List members ken here new to the list. I was directed here by someone on the graphic user interface list of NFB. I was using NVDA and just getting the knack when one day for no reason NVDA wouldn't start. I uninstalled it since I thought it may have been a defective copy. When I got a new copy the same thing happened. I will hear the NVDA start sound, then almost immediately a windows error sound then the NVDA shutdown sound. This tells me something in windows is not letting NVDA run. It Ran before though. Do any of you know what's going and what I may have to change on the machine. This is the latest version. Ken. I pledge to participate actively in the efforts of the national federation of the blind to achieve equality, opportunity, and security for the blind; to support the policies and programs of the federation; and abide by it's constitution.