Version:           unspecified (using Devel) 
OS:                Linux

Whenever I use the "present windows" (the clone of Mac's Expose) or the "highlite windows" (using the "Smooth tasks" plasmoid), the preview windows shown are extremely bleached out, like an overexposed photo: They are almost completely white; only very big, bold black fonts are vaguely visible and only very few coloured areas are shown (and this in the wrong colour). Also, the effects take significantly longer to show than with KDE4.4. In the kwin-effects settings I use OpenGL in the "Common Memory"(? my own back-translation from German) and the bilinear texture filter. Other Options show no change in behaviour. I have a Lenovo T400 laptop with an Intel 4500MHD graphics card.

Reproducible: Always