File group ownership changing automatically

Hi everyone,

Need help with an issue. The group ownership of files on my Solaris system is getting changed automatically. Could someone tell me the reason why? And how could I correct it? One more info- everytime the ownership changes, it changes to "x".

Thanks :confused:

which files are created under which directory? what are the permissions of the directory the files are created in? how are the files created --- through a script, FTP upload, manually, etc.? what os and version are you running? also, post "ls -l" listing of one (or a few) of the affected files and directory ...