I'm working with Mac OS 10.4.11 and Parallels 3.0 build 5600 and when I went to open it got this error message: ' Parallels Desktop is unable to operate properly since it cannot communicate with one of its drivers. Try to restart the application to overcome this issue. If restart doesn't help, re-install Parallels Desktop. Note that Parallels drivers require a short time to be properly started and initialized. So you may need to wait a minute before trying to launch the application. I tried to reinstall but I don't see v.3.0 available as an option on the Parallels website. What do you advise? Thanks.