VirtualBox
- VMM: fixed VERR_MAP_FAILED during savestate under certain circumstances (bug #7929)
- GUI: stop updating the VM status icons when the VM is paused (bug #8368)
- VBoxManage: fixed wrong return code after startvm (bug #9642)
- BIOS: fixed hang at launch of DOS applications generated by Clipper 5.3 (note that hardware virtualization may be required)
- USB: fixed OS/2 boot hang when using recent USB drivers
- NAT: increase maximum number of parallel connections making connections with port forwarding more robust (#8471)
- Metrics: fixed potential problem with invalid access in guest metrics collection upon VM destruction
- Main: don’t crash if a medium is ejected twice (bug #9922)
- VBoxSVC: fixed crash under rare circumstances (e.g. client crash)
- VRDP: fixed screen freeze (bug #9620)
- OVF/OVA: fixed broken disk images on import under rare circumstances
- OVF/OVA: better error message when importing corrupted appliances
- VMDK/VHD: fixed a possible corruption with host cache disabled when using snapshots under rare circumstances (bug #9749)
- 3D Support: Fixed fullscreen mode issues for ATI graphics (bug #9775), Windows Media Player rendering for XPDM-based Direct3D support (bug #8341). Multiple fixes to XPDM and WDDM – based 3D support for Windows Guests and for 3D support in general
- Linux hosts: fixes for Fedoras Linux 2.6.41 (bug #9948)
- Linux hosts/guests: fixes for Linux 3.2 (bug #9743)
- Solaris Additions: various shared folder fixes (bugs #9856, #9862, #9917)
- Windows Additions: various fixes for Direct3D support (un)installation, added detection of missing or wrong Direct3D system files
Após a atualização, e ao iniciar o frontend do Virtualbox, você será notificado sobre a atualização do Extension_Pack:
Cliquei em baixar mas um erro foi encontrado, a URL fornecida não estava disponível. Mas não se desespere você pode realizar o download manualmente no endereço: http://download.virtualbox.org/virtualbox/4.1.8/Oracle_VM_VirtualBox_Extension_Pack-4.1.8-75467.vbox-extpack
