virtualbox.org

It defaulted to 800x600 with new install. I changed it to something more usable. But the window wasn't changing size, it was just fitting the higher resolution in to the same window, and everything was very small. So I tried to select the 100% option, I ended up with this. I have restarted twice, no help. I can't do anything....

The login screen is as it should be.

Don't know why images aren't showing, here is direct link

https://i.imgur.com/yNdYvP5h.png

https://i.imgur.com/gupvpYjh.png

As soon as mouse pointer hits the edge of the visible desktop, it jumps to outside the window.

This worked

"xrandr -s 1440x900"

IMG tags only work on images previously uploaded with the forum Upload Attachment tab.

Forum gurus don't go to 3rd-part sites for images that can be posted with Upload Attachment from first day first post.

Glad you found a solution! Guest Additions is required in the VM for full display compatibility. Wayland on host or VM can cause some troubles; Virtualbox is not fully compatible with Wayland yet.