Last month I installed Phoenix to see if it would run on my current computer, on my previous systems it was always problematic.
To my surprise it worked when I selected Voodoo as renderer. When selecting DirectX or DirectX_NPO (whatever that means

In software mode the game wouldn't even start.
Although I have only played a few missions, the game has run without any problems so far.
I used nGlide 0.99 and I patched Phoenix to 1.1e and tested it on Windows Vista 64bit.
I thought I drop this message cause this game isn't listed in the compatibility list of nGlide.