看來這新聞不熱門阿！！

打算安裝D3D的網友注意以下安裝注意事項
請f8進安全模式安裝guest addtions

#Direct 3D support in Windows guests. For this to work, the Guest Additions must be installed in Windows "safe mode". Press F8 when the Windows guest is booting and select "Safe mode", then install the Guest Additions. Otherwise Windows' file protection mechanism will interfere with the replacement DLLs installed by VirtualBox and keep restoring the original Windows system DLLs.


另外開啟多核心也有幾點注意:

#The following Guest SMP (multiprocessor) limitations exist:

* Bad performance with 32-bit guests on AMD CPUs. This affects mainly Windows and Solaris guests, but possibly also some Linux kernel revisions.
*64-bit guests on 32-bit hosts do not support SMP yet (except on Mac OS X).

#64-bit guests on some 32-bit host systems with VT-x can cause instabilities to your system. If you experience this, do not attempt to execute 64-bit guests. Refer to the VirtualBox user forum for additional information.