启动840D系统后出现下述报警: Please Verify the entry in DH.ini DHSTART MMCHOME= or the database installation in "f:\dh" OK 点OK后不久会出现另一报警: WARNING Application'dhserver' didn't Post Initcomplete! Press and continue OK 点OK进入系统后发现机床自带的程序和存在机床里的程序都看不见了,出现"无文件对显示有效''这一提示.