File Permissions, Apache and FTP

[Stephen]

I have a LAMP environment at home for development and testing, and host 
my web sites on a host site.

I have never encountered this problem in many years.

I send a new php file via ftp to the web host in the manner I have 
always done. I had no errors locally.

I get a 500 error and this was caused because the php file "was writable 
in group"

I created a ticket and got a response that the file permissions were 
changed to 744. This made the error go away.

I understand the pieces here but not the whole picture.

Why would apache throw up a fur ball because the file was group 
writable? It was world readable.

I confirmed that the file on my machine was group writable. But it 
worked fine locally.

gFTP is set to "Preserve file permissions"

I created the file on a windows machine connection to the Linux 
directory via Samba.

Help clue me in.

Thanks
Stephen
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