To fix construct 2 running on Parallels crashing when you try to load a project uninstall parallels tools. This fixed an issue related to the video driver loaded by parallels 7 parallels tools for me.
This is a quick uninstall and reinstall I uninstall it when I need to develop in construct 2
Thanks for this post! Uninstalling Parallels Tools worked for me in Parallels 8 as well.