I open a word 2007 doc located on my local hard drive. I edit it for awhile, sometimes I can save it but other times it switches to Read Only mode when I try to save it and I have to save it with a different name. No one else is editing the doc or has it open. It is not specific to this particular document because it has happened with other Word 2007 docs I have edited. It is very frustrating as you can imagine. It can't be a permissions issue because I can save it one minute and then a few minutes later when I go to save it it switches to Read Only.