Hi,
I tried adding a global exclude file by adding this to my ~/.gitconfig:
[core] excludesfile = ~/.gitignore
The presense of this option seems to cause git gui to ignore _all_ untracked files. For example, if ~/.gitignore is empty (or contains a bogus ignore like foo), then git gui doesn't show any untracked files.
I'm seeing this on OS X with git version 1.5.5.rc1
+ seth
-- Seth Falcon