I have a strange issue. I'm logging in to a SharePoint 2010 solution I then have to enter credentials, and check for remember me (fedauth cookie is set). Then is open a document and I get a popup (Office does not use the cookie??) to log in and check for remember me. Then I log out from the browser and close word and IE. Then I open IE I'm logged out (good), then I try to open the document (from document history in word) and I do not need to log in (Hmmm but I logged out). Then I login in IE as a different user, and opens the word document (no log in) edit it and save. When I edited the document, in last edit is set to the first user (not the one I logged in as in IE) not good. I look at the cookies in the "Temporary Internet Files" here I can see a cookie (Cookie:firstname.lastname@example.org) if I delete this I get loggin in Word (but not IE if I check for remember me). To me it looks like IE uses the fedauth cookie but word users the other one.
Does any of you have experience with this issue, should not word also use the same fedauth cookie?