I am very disappointed from win 8.1. Neither from microsoft nor from
intel we hear a statement to that realy existing bug. Downgrade to an old intel
driver can not be realy a solution. Indeed it fixes for me the memory leak, if a
play a game which has not the same resolution, but optimus works not proper
with the old intel driver. The games permanently stutters. So this is also no
solution. Hey, come on, fix that bug, or give at least a message that you hear it
and work for it!!!