VMM: better error reporting for VT-x failures

VMM: don't overflow the release log with PATM messages (bug #1775)

VMM: fixed save state restore in real mode (software virtualization only)

GUI: work around a Qt bug on Mac OS X (bug #2321)

GUI: properly install the Qt4 accessible plugin (bug #629)

SATA: error message when starting a VM with a VMDK connected to a SATA port (bug #2182)

SATA: fixed Guru mediation when booting OpenSolaris/64; most likely applies to other guests as well (bug #2292)

Network: don't crash when changing the adapter link state if no host driver is attached (bug #2333)

VHD: fixed bug which prevents booting from VHD images bigger than 4GB (bug #2085)

VRDP: fixed a repaint problem when the guest resolution was not equal to the client resolution

Clipboard: don't crash when host service initialization takes longer than expected (Linux hosts only; bug #2001)

Windows hosts: VBoxSVC.exe crash (bug #2212)

Windows hosts: VBoxSVC.exe memory leak due to a Windows WMI memory leak (Vista only) (bug #2242)

Windows hosts: VBoxSVC.exe delays GUI startup

Linux hosts: handle jiffies counter overflow (VM stuck after 300 seconds of host uptime; bug #2247)

Solaris hosts: fixed host or guest side networking going stale while using host interface networking (bug #2474)

Solaris hosts: added support for using unplumbed network interfaces and Crossbow Virtual Network Interfaces (VNICs) with host interface networking

Solaris hosts: reworked threading model improves performance for host interface networking

Windows Additions: fixed crash when accessing deep directory structures in a shared folder

Windows Additions: improved shared folder name resolving (bug #1728)

Windows Additions: fixed Windows 2000 shutdown crash (bug #2254)

Windows Additions: fixed error code for MoveFile() if the target exists (bug #2350)

Linux Additions: fixed seek() for files bigger than 2GB (bug #2379)

Linux Additions: support Ubuntu 8.10

Linux Additions: clipboard fixes (bug #2015)

Web services: improved documentation and fixed example (bug #1642)