I've hit this in Arch Linux and it's quite annoying: Open-Source GPU Drivers Causing Headaches In KDE 4.5-series. I was angry at first but then I read Martin's explanation for what was happening and decided to be more forgiving.
September 2010
Intel 82845G/GL[Brookdale-G]/GE Graphics and KDE 4.5 Desktop Effects
Submitted by illogic-al on Mon, 09/06/2010 - 06:26
illogic-al.Org