Issue with fullscreen on Mac OSX in latest version

[ryho]

This only appeared after I updated to Virtual Box 4.3.10.

My guest is Linux CentOS, my host is Mac OSX Mavericks, both are latest version

Sometimes when in fullscreen mode on Mac OSX, the VM leaves full screen mode and becomes a smaller window, but does not have a border around it or scroll bars, making it very difficult to use. Once in this state, the only way to leave it is to Close>Save State of the VM, then start it again, or completely reboot it.

Ways to reproduce:

1. In full screen mode, let laptop battery go to 5%, so Virtual Box will save state and close. When you restart, it will be in the weird window mode.

2. In full screen mode, select View>Switch to Seamless Mode, or View>Switch to Scaled Mode. The VM will then enter the weird window Mode. A window appears and clicking ok to samless/scaled will put you in the correct mode, but you can click cancel to forever stay in the Weird Window Mode.

[ryho]

In full screen, at same resolution as my screen.

[ryho]

In Weird Window Mode, at same resolution as before, unable to scroll

[GunaSekharP]

Even i have this issue and it's very annoying and happens most of the time.

[aeichner]

Please reopen if still relevant with a recent VirtualBox release.