VirtualBox 2.2.4 Build 47978

What's new in this version:

- Windows Installer: fixed a potential hang during installation
- Windows Installer: fixed several problems (bug #3892)
- Solaris hosts: make it work with Solaris build 114 or later (bug #3981)
- Solaris hosts: fixed a bug serial port character handling found during loopback (bug #3120)
- Linux hosts: adapted vboxdrv.sh to the latest changes in VBoxManage list runningvms (bug #4034)
- Windows hosts: fixed a crash caused by host-only/bridged networking
- Mac OS X hosts: fixed access to host DVD with passthrough disabled (bug #4077)
- Guest Additions: fixed problems with KDE 4 not recognizing mouse clicks
- Windows Additions: fixed incorrect 8-bit guest color depth in Windows 7 guests
- GUI: warn if VT-x/AMD-V could not be enabled for guests that require this setting (bug #4055)
- VMM: fixed occassional crash due to insuffient memory
- VMM: fixed hanging 64 bits Solaris guests
- VMM: restore from a saved state occassionally failed (bugs #3984 and #2742)
- Clipboard: fixed a deadlock while shutting down the shared clipboard on X11 hosts (bug #4020)
- OVF: fixed potential hang during import
- OVF: fixed potential crashes during import/export on Win64 hosts
- VBoxManage modifyhd --compact: fixed bug which could lead to crashes and image corruption (bug #3864)
- VBoxManage metrics collect: now flushes the output stream.
- VHD: made VBoxManage internalcommands sethduuid work for .vhd files (bug #3443)
- VHD: some .vhd files could not be cloned (bug #4080)
- VMDK: fixed creating snapshots
- NAT: improvement of TCP connection establisment (bug #2987)
- NAT: fixed order of DNS servers in DHCP lease (bug #4091)
- NAT: fixed DHCP lease for multiple name servers (bug #3692)
- NAT: fixed a potential segfault if the host lost its connectivity (bug #3964)
- Shared Folders: deny access to parent directories on Windows hosts (bug #4090)
- Shared Folders: make rm/rmdir work with Solaris guests on Windows hosts
- Networking: fixed the problem with blocked receiving thread when a broadcast packet arrives too early to be handled by uninitialized e1000 adapter.
- Networking: fixed the problem that caused host freezes/crashes when using bridged mode with host’s interface having RX checksum offloading on (bug #3926 and related). Fixes problems with TX offloading as well (bug #3870)
- PXE boot: Added support for PRO/1000 MT Server adapter.
- Python bindings: fixed keyword conflict
- SCSI: fixed occasional crashes on Win64
- Serial: allow to redirect the serial port to a raw file (bug #1023)
- VRDP: fixed a rare incorrect screen update