I use Parallels on an Intel iMac. It doesn't seem to care whether I am in coherence or window view. Typically I am in the window view. In windows 7, IE 8 crashes ever 30 minutes or so - just quits. I can't use Firefox for the online app. that I am using for work. I don't know if the problem lies with Parallels or with Windows 7. I don't know if there is anything I can do to remedy the situation. Fortunately, the crashing is not a terrible thing but more an annoyance. thanks for any ideas.