Window is blink in the beginning of "Slide Back" animation. Reproducible: Sometimes Steps to Reproduce: 1. Enable "Slide Back" effect 2. Try to switch between few windows for a while Actual Results: Sometimes window will blink in the beginning of "Slide Back" animation. Expected Results: Window doesn't blink while "Slide Back" animation. Reproduced with Mesa and Catalyst.
Having that little glitch too. Sometimes when I switch from one window to another, the slide effect shows very quickly the window that is still supposed to be behind before the animation is over. Happens on KDE 4.9.1 (and older versions) in Chakra on nVdia 8600 M GT with proprietary drivers (304.37 and older).
*** This bug has been marked as a duplicate of bug 294865 ***