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drawing a colored, transformed quad not working as expected


So I just switched over to Managed DirectX For .Net 2.0, and since I can no longer draw an array of verticies, I've been playing with Generic.GraphicsBuffer(Of CustomVertex.TransformedColored).
It gave me this odd shape with only 4 verticies specified:Screen Shot.
The white is not part of my app, the quad should have been at location 100,100 with size 100,100... which looks right.
Any ideas on why the one face is reaching up to 0,0 ?
[637 byte] By [ColonelSanders] at [2008-2-22]
«« compilation problem when using nmake
»» XML Editor included in Visual Studio VB 2005 Express Beta?
# 1
It looks like your 2 triangles are being drawn correctly, but an additional one is being drawn as well. I'd check your draw call to make sure you're only drawing 2 tris, and not 3 which would cause it to read random memory for the 3rd triangle.
KenPaulson at 2007-9-9 > top of Msdn Tech,Game Technologies: DirectX, XNA, XACT, etc.,Game Technologies: DirectX 101...
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