I just upgraded to Parallels 8 on MacBookPro OS X, I have Build 8.0.18305, revision 811518. The new Parallels 8 was working great (faster), then I accepted the revision 811518, October 25, 2012. Then when typing in the virtual machine on Outlook and Word, the screen suddenly jumps into a line up of all open windows. It is hard to tell what is causing it but I think it is when my finger just touches the touchpad. It is very aggravating. I'm beginning to wish I could uninstall the revision. Can anyone help?