I have version 5584 installed and recently installed MAC 10.5.2. Have reinstalled Parallels Tools and Parallels v 5584 after OS update: Two issues: 1. The drag and drop and copy/paste features do not seems to work now. (Again, I reinstalled Parallels tools after update. 2. I have experienced a couple of complete machine lockups: One upon shutdown and another when trying to change preferences. Not sure what is causing this? IMAC 2gb with latest versions of OS and parallels and microsoft windows xp Pro I have had no problems with V 5582 and previous Leopard versions. Regards.