Help! Error Message:Unable to change virtual machine permissions

I just moved my Parallels 7 Windows XP virtual machine to a new computer. In the old machine, the VM was sitting on the single hard drive. Note that my new machine has a small ssd with the OS & apps (like Parallels) sitting on it; the vm is sitting on a second larger hard drive as its far too big for the ssd primary drive.
I had no problems setting setting up Parallels 7 in the new machine & restarted the vm in Parallels with no problem.

After setting up some new software (including a Microsoft keyboard utility) & looking at a few compression options in Parallels I rebooted my machine. Now when I try to open my Windows XP vm I get the following error message:

Unable to change virtual machine permissions.
Parallels Desktop cannot set the required permissions for one or more objects in the virtual machine folder. Contact the Parallels support team for assistance.

I don't recall changing anything in Parallels. I have no idea what this error message means or how to correct it.
thankjs

 

I suggest you to do what error message tells you - contact support.
You can do it here www.parallels.com/support
it is free and faster

 

Did you happen find a solution?

FYI, for me the drive had somehow become write-only. (pvm file stored on an external drive)
Un-Mounted, remounted, and it was fine.

 

you may find this helpful: http://kb.parallels.com/en/9303

 

One resolution

FYI, for me, running parallels workstation under win7 ultimate 64, I simply had to run the parallels as admin.
That cleared up the issue.

Damn UAC.....

 

Right, but it is not Parallels issue than - the settings should be changed in Windows