I am running Squeeze.
I have installed VirtualBox 4.1.6 from the VirtualBox website.  I have 
also installed dkms.
When I start the program it shows no VMs, since I have not yet created 
any.  I Click to create a new VM and the wizard prompts me through it. 
I plan to install XP-Pro since my wife wants to buy me something (I 
don't know what) as a gift that only runs on Windows.  The VM seems to 
build fine, and creates a disk image.  When I try to start the VM, 
however, instead of prompting me for where the installation media is, 
I get an error that says:
Failed to open a session for the virtual machine XPPro.
Failed to load VMMR0.r0 (VERR_SUPLIB_OWNER_NOT_ROOT).
Result Code: NS_ERROR_FAILURE (0x80004005)
Component: Console
Interface: IConsole {1968b7d3-e3bf-4ceb-99e0-cb7c913317bb}
What am I doing wrong?  I'm not running this as root.  I don't want to 
run as root.  I created the VM as a user and the disk image was 
created in a subdirectory within my home directory.  I am guessing 
that the issue is a problem with permissions to use the CDROM drive, 
but I don't know what to do about it.  I am in groups cdrom, floppy, 
vboxusers and just about everything else, so I ought to have access.  
This happens whether I insert the CDROM before, or after trying to 
start the VM.  It happens if the device is mounted, or not.
Does anyone have a clue what I am doing wrong?
Marc