Hi. Have recently updated to WB5 and have all the recent updates. Have noticed since first running an intense initial flickering when Window's is first opening...after log-on. I have a Nividia 6800GE with a recent video driver. In the past, with earlier drivers, I observed an initial black screen (once or twice) before the image settled. Of late - and until WB5, this had not been occuring. Anyone experiencing this or similar. The screen only flickers briefly and then resumes a normal screen. This flickering never occurs again...only at start-up.