I use Drafsight in a Windows 8.1 environment with Intel Core i5-4440 CPU processor. I have 8GB of RAM. It is a 64 bit operating system with over 250GB of hard drive free space. Despite all this the program crashes randomly when I try to move the sheet view to the centre of my screen. The program stops working with a message saying that the progam has to close and do I want to save my work. No reasons given for the stop and sometimes it does not save the file. I send the a response back to Draftsight via the on screen fault response window. Then it happens again and again, just when you least expect it. Is there anything I should or could be doing to avoid this problem?