First, please make sure you do not have any background tasks running which tie up your video acceleration. This includes Microsoft NetMeeting, Remote Desktop, etc.
Ok, i have only windows standard processes
If this still does not work, please visit
http://www.fujitsu.com/ and see if there are newer Display Driver Downloads for your laptop.
But it worked for about 4 days, and I reinstalled all the video drivers shipped with the laptop (the ones installed the first time i bought the pc)
Model Number is Fujitsu Siemens Lifebook C series C 1020
Thanks