This seems like a strange question to ask, so maybe it is a bug, (and I have no problem starting these virtual devices), but then I notice for each new start of an Android project in Eclipse, I have to recreate these Genymotion VDs. So I end up having duplicates in my Device Manager. I go to try to delete them in the VD Manager and it says, "stop the device before deleting it".. which is weird because there is no stop button. And nothing in settings. Anyone know how to stop it? Thanks.
Do it from the VirtualBox manager: