Error with my 3D Engine. Help needed. Source code givin away free

[VBD]

Uncle Sam Needs You!(Actually I do but what the heck?) I worked for many hour to create a high power 3D Engine based on OGL. It worked beautifully except it flickedred. I tried adding a backbuffering technique which stopped the flickering except now the square gets all chopped up into weird peices. Any help is welcome. You need the OpenGL Type Library(TLB). If you register/install it and it still has an error, uncheck Missing: OpenGL, press ok, go back to refrences and check the version you just installed and it should work! Good luck. Thanx in advance