VB Version 4.6.2 - Guest Additions are installed.
After having difficulty with dual monitor on Win7 guest I thought I'd try Win 8. I was able to get dual monitor with Win 8, but after saving state and trying to resume, the machine _almost_ restored and then Aborted with this:
I have attached the VBox.log.Failed to open a session for the virtual machine win8.
No error info.
Result Code: NS_ERROR_CALL_FAILED (0x800706BE)
Component: ProgressProxy
Interface: IProgress {c20238e4-3221-4d3f-8891-81ce92d9f913}