Vb .net opengl don't work, help !

After hours of searching i found a Visual C on .net framework library that enables to use some of OpenGl functions… spend all day changing it from C to VB language and finally success, everything works with one exception… i don’t see a cube in my custom control. If someone understands both VB .NET or C .NET and OPENGL can u check out http://glutenblungen.narod.ru/opengltest.zip (just 22kb) and see what’s wrong with it ?