SCIM, the Smart Common Input Method, does not play well with GNOME Shell.  I am unable use it both in Overview mode and in the IM notifications.  It works with all other windows, but with GNOME Shell, no SCIM notification toolbar pops up when I input something.  As a result, I cannot type many of the languages I need to.

This is an important bug to fix, because many of my folders have diacritical marks which my keyboard cannot type.  I use SCIM as a means to type them, but I cannot search for them in GNOME Shell.  Furthermore, I IM people in various languages, but I am forced not to use the notification bubble when using a non-English language.