Grayed out check in Read Only attribute

[Larry]

I was trying to remove the Read Only attribute I placed on
a sub-folder of a folder I made to hold some files, but
the check was grayed out. I was still able to remove the
check and click apply, but when I did it dropped back to
the folder it was in. When I went back to the sub-folder
and checked the properties, it still had the grayed out
read-only check. Now I can not remove it from any folders
I've created.

What has happened and can someone help me to where I can
remove the attributes from folders I create?

Thanks,
Larry