When I first installed Team Explorer (with Visual Studio 2005) it remembered my password.  They make us change our passwords every three days (I'm exaggerating a little).  Once I changed my password, it began prompting me for a username and password every time I started Visual Studio.  There was no "remember my password" checkbox visible in the dialog.

I was forced to reinstall Visual Studio a while back, and after doing so, Team Explorer once again saved my password.  But, yesterday was password change day, and now I'm back to re-entering my username and password every time I start Visual Studio.

What's the deal?

Is your TFS using the domain controller for authentication or local users?

We're using domain accounts to access TFS.

I have nothing to do with administration of TFS, but your post brings up an interesting question.  Clearly, given my problem, TFS is not using Kerberos authentication.  Is this a shortcoming of TFS or is it a configuration issue with our TFS setup?

FWIW, yesterday I tried to open an attachment on a work item.  It prompted me for a password, and this time the save password checkbox was present.  I checked it, and it now seems that I can start Visual Studio without getting prompted for a password.