On 26/12/2022 10:05, Bengt Gördén wrote:
Maybe this?
From Reddit: I had the same problem, with VirtualBox 7.0.2 running under macOS Ventura on a MacBook Pro 16 (2019) and Windows 11 (22H2) as guest. My **workaround** is **manually setting the virtual graphics controller to VBoxVGA** (instead of VBoxSVGA).
https://www.reddit.com/r/virtualbox/comments/yh4dad/windows_11_guest_os_keep...
<snip> Could be possible, but because the several registered VMs still work when called individually from the commandline VBoxManage utility, I'd infer that I may be looking at a system error in Qt(?) rather than something to do with the VirtualBox GUI manager in isolation. So I'll hold off on your suggestion meantime. But thanks for the trouble anyway. -- Robin K Wellington "Harbour City" New Zealand