VBoxClient pidfile no copy paste on second running image.

[Edwin]

The VBoxClient process is making .vboxclient-*.pid files in the users home directory, to prevent from starting it more than ones. But if the users home dir is a nfs shared home dir to multiple virtualbox images the VBoxClient process will see .vboxclient-*.pid files in the users home dir and does not start the VBoxClient in the second virtualbox image. With the result that copy/past is not working on the second image.

Solution: Don't make the pid files in the users home dir, but in /var/run or elsewhere on the local machine.

[Michael Thayer]

Adding VonTell to CC.