Everyone,I suddenly can not start until now had been able to start.As the error message"Please try to run you can not open the file. A file recovery →." Draftsight will start halfwayI can not operate the meantime.We terminated from Windows appears "Draftsight is. Was stopped working" and then. OS is 64bit sp1 Windows7 premium.Was carried out to reinstall Draftsight, a restart of Windows Situation does not change.I am very troubled. Are in a hurry. I think it is not know how to deal with someone. Although several times to post to the community, I have not identified probably because there is no English language skills. Thanks in advance. Nozaki. Japan.