Hi,
i've found how to resolve this problem,
i've installed a server with windows server 2003 (geforce4mx,256ddr,ax1800)
and i tried to launch dolphin but i got this "direct3d device creation failed".
this is because Servers OS's will set all graphics options to the minimum (graphic acceleration etc...) and of course when you install directx, the directdraw renderer is set to "disabled" which will automaticaly disable Direct3D.
Perhaps it's the same on your computer , it is possible that other os's will do the same.
To resolve this , i first get into the "display properties" (don't know the name in english sorry, my os is french) click on "Settings" tab (where there is the screen resolution) then click on "Advanced".
here i had to set the "graphics acceleration" to max.
After this i click on the main "Start" button , then "Execute" , type "dxdiag" , you'll have the directx control panel , click on the third tab ("display" i think)
then activate "DirectDraw" , it will automaticaly activate "Direct3D".
Reboot , and you're done, now you can launch Dolphin ! v( ^_^ )v
I hope this will help.
Sorry for my bad english !
lunatik (ps: Great job for this final release ! you all rocks !!!! )