Version: (using KDE 4.1.0) Installed from: Gentoo Packages well, everything start out quite nicely, but after some hours of running (2-3 for me) the cpu load goes up and `top` reveals that kontact is the bad boy. restarting kontact fixed it. this only happened to me with kde 4.1.0's shiny new qt4 kontact.
hi haven't come accross this phenomenon in the last releases of kontact, so mark as fixed.