Here’s a quick tip for other Mac users who use Parallels Desktop for their Internet Explorer testing needs: To make IE9 (in beta at the time of this writing) work in Parallels you may need to disable GPU rendering.
If you’re having problems with IE 9 crashing, not redrawing the viewport, showing nothing but a black background or otherwise behaving strangely when running in a virtual machine under Parallels Desktop, this may help:
Posted in Browsers.