I'm running Virtualbox v4.3.8 (I just downgraded from .10 thinking that was the issue) with guest additions installed. Host: Windows 8.1 (latest updates) Client: Windows 7 Pro
History. I just changed laptops to the Lenovo Yoga 2 which has a native resolution of 3200 x 1800 and my previous machine had a max resolution of 1600 x 900. I have my work vm on an external drive, and when I brought it up it is trying to run at 3200 x 1608 and I can't read anything. I can change the icon size and other trickery, but I'd like to set the vm guest resolution at 1600 x 900 in full screen. Lowering the resolution in Windows just shrinks the visible window.
It seems to me like a dumb question, but my google skills have failed me.