Hi, I have successfully installed Mac OS 10.7.1 Lion as a Guest OS, I am using the new Parallels 7 with Mac OS X 10.6.8 as the Host OS, everything installed OK and is running fine with no issues. The problem is that the Guest OS (Mac OS X Lion) display resolution is fixed to 1024 x 768, is there a way to change this ?, I tried to install Parallels Tools within Lion but I think they only work with Windows as a Guest OS, please your advice, thanks a lot