Parallels Desktop 3.0 for Mac 是 Mac OS X 上的虚拟机软件，最新版本 build 5570，这是本月 5540 之后的又一次升级，全新增加 Primary OS 的支持以及 USB 设备的支持。全部更新列表如下：

- Primary OS support - Leopard compatibility improvement
- Virtual devices - USB devices compatibility improvement (including Blackberry)

问题修复：

Bugfixes and improvements in Parallels Desktop 3.0 for Mac Beta (Build 5570)

- Primary OS support
　　* Parallels Desktop installer hangs on Leopard - fixed
　　* Can't install Parallels Desktop on Leopard when Internet Sharing is enabled - fixed
- Stability and resources usage
　　* Parallels Desktop hangs with spinning ball when trying to start VM after changing virtual memory amount - fixed
　　* Several kernel panics during VM startup - fixed
　　* Guest Vista goes to BSOD being idle - fixed
　　* DOS16M (16 bit DOS extender application) crashes Parallels Desktop - fixed
　　* Guest Vista fails to sleep and goes to BSOD - fixed
　　* Fatal error when executing some command line utilities in Windows - fixed
- Coherence
　　* Multiple problems with Spaces - fixed
　　* Crash while minimizing window in Coherence - fixed
- SmartSelect and Shared Applications
　　* Problems with opening files with UNC path - fixed
- Disks and folders sharing
　　* Sometimes Windows disks can't be mounted to Mac desktop - fixed
　　* Error message appears when saving files with OSX browser directly to mounted Windows disk - fixed
- Video and 3D
　　* Several applications compatibility fixes
- Parallels Compressor
　　* Windows 2000 hangs after executing compressing stage and restart - fixed
- Parallels Explorer&Mounter
　　* Can't mount shared virtual machine disk to Mac desktop - fixed
　　* Can't mount HDD image using Mounter in command line - fixed
　　* Incorrect definition of free disk space - fixed

Known issues in Parallels Desktop 3.0 for Mac Beta (Build 5570)

- Stability and resources usage
　　* Problems may occur when suspending a virtual machine with running OpenGL application
　　* Mounted USB device may seriously increase CPU usage
- Suspend/Resume
　　* Slow suspend and resume still may be noticed on Leopard
　　* BSODs on resume still may occur
- Virtual devices
　　* CD tray on Mac Pro may react non-properly on Eject button
- Coherence
　　* Small artefacts in Expose' may appear
- Parallels Tools
　　* Parallels Tools Center sometimes may use 100% CPU after drag-and-drop operation
　　* Sometimes clipboard synchronization doesn't work
- Shared Applications and SmartSelect
　　* Sharing Mac Applications may not be turned off
- Video and 3D
　　* Windows Media Player doesn`t work in IE on Vista
- Parallels Transporter
　　* Vista Boot Camp migration via network may fail (if Vista launched in Parallels Desktop)

下载：parallels.com/en/download/desktop/beta/