I just installed PD8: I used to have Windows 7 on my 2nd Monitor running in coherence Mode. When I open for example Outlook on that 2nd Monitor and maximize the window, I have 30px of "overlay" on the 1st and 3rd Monitor (which is left and right of the 2nd Monitor). In PD 7 everything works fine. I just rolled back and hope Parallels will fix this.