Calling opendir or readdir on empty floppy or CD drive causes the SEM dialog box (No disk in drive..Abort/Retry/Ignore) to pop up. Trying to get the Ignore button to work eventually cause seg fault. A workaround is to bracket calls to these functions with SetErrorMode((SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX)); /* disable SEM */ and SetErrorMode(0) /* enable */ This effectively presses Ignore for you without the SEM dialog: GetLastError returns 21 (ERROR_NOT_READY) which is what the Ignore reponse should do. Danny http://travel.yahoo.com.au - Yahoo! Travel - Got Itchy feet? Get inspired! -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/