Go to some code file in Idea 13. Right click on it. Why "Git->Show history" and "Git->Show history for Selection" options are in grey using Git with Intellij Idea 13?
One reason is that file is not under control of Git or just staged for the next commit.
According to the source code, IDEA also does not enable
Show History options for files which are detected as binary files, files not in local file system (I actually do not quite realize what does it mean), files with the
class extention, "workspace files" (
path/to/project/project.iws - for file-based projects;
path/to/project/.idea/workspace.xml - for directory-based ones) and files from the "ignore" list (
IDE Settings -> FileTypes -> "Ignore files and folders" textbox)