Version: (using KDE KDE 3.5.5) Installed from: Gentoo Packages kwin will display 'not responding' warning if kate is showing 'Documents Modified on Disk' notice for long enough, altough kate is responding normally. You can get 'Documents Modified on Disk' notice if you modify opened document with some other program and then go back to kate. ps. why it's 'Documents Modified on Disk' and not 'Documents modified on disk'?
*** This bug has been marked as a duplicate of 137431 ***