Since updating to Parallels 6 and in particular since the most recent updates I am experiencing a significant increase in screen update problems. (Guest = Win 7 64, Mac Look enabled). These problems occur at least (I am using this normally) in the coherence mode. They take the form that I am for example enlarging a window and the content is not correctly redrawn or a window is closed that partially covered another one and the one beneath is not correctly redrawn. Anyone know some help? (it looks like they tried to optimize screen speed in recent updates and overdid it.. Klaus