What permission to assign to user

Hello all!

We are currently using vsphere Client 4.1 and have 12 hosts on ESX 4.1

We have two new starts that require access to a virtual machine in vsphere Client. I have been tasked with assigning them the permissions to access it.

When I click on the VM and on the permissions tab I can see everyone who has right on it.

What right do I need to assign them so that when they log into vsphere Client they only see the VM I let them see and not the rest of them.

I have added the user to Virtual Machine User (sample) and even Admin but when they log in they still see all of our servers instead of just the one.

Any help as always is greatly appreciated,

Austin.