VirtualBox 3.1.2 (released 2009-12-17)

This is a maintenance release. The following items were fixed and/or added: 

VMM: fixed SMP stability regression 
USB: fixed USB related host crashes on 64 bits Windows hosts (#5237) 
Main: wrong default HWVirtExExclusive value for new VMs (bug #5664) 
Main: DVD passthrough setting was lost (bug #5681) 
VBoxManage: iSCSI disks do not support adding a comment (bug #4460) 
VBoxManage: added missing --cpus and --memory options to OVF --import 
GUI: fixed VBox URL in update dialog for German and Dutch languages 
GUI: NLS updates 
OVF: fixed export of non standard storage controller names (bug #5643) 
Solaris hosts: several USB fixes (including support for Apple iPhone) 
Mac OS X hosts: several fixes for the 3D support 
Mac OS X hosts: re-enabled CMD+Key combinations, even if the Host-Key isn't CMD (bug #5684) 
Mac OS X hosts: fixed to fast scrolling if the mouse wheel is used inside the guest (bug #5672) 
Mac OS X hosts: dock & menubar don't disappear in fullscreen when the VM is not running on the primary display (bug #1762) 
Mac OS X hosts: added an option for enabling "Auto show Dock & Menubar in fullscreen" (bug #5636) 
Windows host installer: fixed starting VBox with wrong privileges right after installation (bug #4162) 
Host interface and host-only networking: prevent driver from unloading while a VM is still active (Windows host only) 
Host-only networking: fixed host-only interface creation (Windows host only) (bug #5708) 
Virtio-net: don't crash without an attached network 
Virtio-net: fixed the issue with intermittent network in VM with several virtual CPU cores. 
NAT: fixed port-forwarding regressions (bug #5666) 
NAT: fixed crash under certain conditions (bug #5427) 
NAT: fixed resolving of names containing a slash or underscore when using the host resolver DNS proxy (bug #5698) 
ATA: fixed sporadic crash when resuming after a VM was forcefully paused (e.g. due to iSCSI target being unavailable) 
SATA: fixed raw vmdk disks (bug #5724) 
Linux guests: increased the default memory for Redhat and Fedora guests 
Linux Guest Additions: fixed installation on RHEL 3.9 guests and on some 64bit guests 
Linux Guest Additions: prevent SELinux warnings concerning text relocations in VBoxOGL.so (bug #5690) 
X11 guests: fixed mouse support for some Xorg 1.4 guests (openSUSE 11.0) 
X11 guests: fixed xorg.conf modification for some older Xorg releases (openSUSE 11.1) 
Windows guests: fixed some VBoxService shutdown issues 
Windows guests: fixed VBoxVideo spinlock issues on NT4 
Windows Guest Additions: fixed uninstallation issues of NT4 
Shared folders: fixed resolving of symlink target (bug #5631) 
2D Video acceleration: delay loading of OpenGL dlls for Windows hosts to avoid GUI crashes on misconfigured systems 
2D Video acceleration: fixed issues with video picture not displayed on playback