Same problem with v4 It would seem that the problem is not restricted to v5 or v6. I am running v4 build 4.0.3848, haven't opened Parallels in several months, and this problem just started for me last week. I'm up-to-date on 10.6.8. The "sudo launchctl stop/start com.parallels.desktop.launchdaemon" suggestion stopped the process from hogging the CPU, but I haven't rebooted, so I'm not sure if the problem will return. On top of all this, it would seem that since I am running v4, I am required to purchase support incidents for $20? There is some kind of Support code required to create a support incident. Or am I missing something? Since v4 was working fine for me previously, I'm interested to hear how Parallels support will handle my problem. If it requires purchasing several upgrades or support incidents to fix a problem, I believe my solution will be uninstalling permanently and opting for another virtualization vendor. I'd like to continue using Parallels, so if there is an official solution, I'd like to hear it.