I\'m using TFS and VS 2012 and my project is in a broken state and I can\'t figure out why. I\'d like to go back to a previous version of my solution when I know it worked and
Try using the Advanced option when you right click on a solution or folder in Source Control:
Then when the dialog appears, check both check boxes so the version you have is overwritten with the specific version you want by selecting Changeset from the ddl and entering the changeset you are after...
This should overwrite the existing solution files with the specific version.
If you have trouble doing it over top of existing files, delete the source on your local machine first and get the specific version after that.