I know parallels allows multiple OS X users to use the same, and seperate VM's. I created a group called parallels and gave it ownership of the VM, and HDD so several users could share it. No luck. Apparently, OS X isn't actually putting the users in the group despite my best effort trying with Netinfo Manager. If someone could post or link me to detailed instructions on how to create a user group, add users to it, and make OS X happy with it all it would be very helpful. I did try some of the walkthroughs online that I found through google, so please, if you post a quick link, try it yourself first so I know that if it doesn't work here it's my problem following instructions. Thanks.