new features:
- add Kode54´s PCM interpolation module
(still can´t contact with Kode54. If he against, this feature will remove in future release)

bug fix:
* Suggests me to reference Gens when playing music synchronized based on audio playback speed to avoid sound crackling. DarkDancer
* Suggests me to reference Aaron Giles´s new timer system design to handle audio synchronization problem.neoragex2002

- remove multi-thread audio synchronization mechanism
(new mechanism not implement yet )

* Can´t open Rom Select window since v6.0 sjyune
* When try to change a "all gameboy advance" to "gameboy advance" in filetypes emu crashes. Drain

- fix bug in open gba file dialog that make VBA crashed.

* Once you do delete the file and create a new one, VBA Smooth only runs in 16 bit color mode now (which means refreshing the desktop and whatnots). Kirby

- adjust settings for VBA.ini of other version of VBA
- use Direct3D, filter plugin, scale2x as default settings
- remove VBA.ini from replease zip file

* when run VBA smooth v6.1, OS report lack of mfc71.dll, msvcp71.dll, msvcr71.dll many people

- use static link with MFC intead of dynamic link

* can´t run VBA smooth v6 in non-intel CPU computers. many people

- change the optimization option of ICC 9.0 for non-intel CPUs