Windows 7: Win 7 GPO file copy 0x80070005

I have a GPO for copying a windows logon background to "%windir%\system32\oobe\info\backgrounds\backgroundDefault.jpg" Made an entry in computer configuration - Windows Settings - Files to do the copy and am recieving event ID 4098 with error code 0x80070005 in the eventlog on the win 7 client. Specifically put it in computer configuration because users has no access to copy to that folder. any ideas as to what may be the cause?

Found it. Domain computers needs read access to the share from wich you are copying the files in question.