This is not the first time the "unable to calculate ..." error shows up. Do you have one of those integrated Intel graphics card? Intel makes terrible OpenGL drivers. At least that's what someone told me once.
There is a patch in one of the earlier MiniB3D threads that fixes this problem but I don't know why it isn't in the official source.
EDIT: http://blitzmax.com/Community/posts.php?topic=61515
There. scroll down to the code snippet posted by Vertex.
I remember that this fixed this error for me.
There is a patch in one of the earlier MiniB3D threads that fixes this problem but I don't know why it isn't in the official source.
EDIT: http://blitzmax.com/Community/posts.php?topic=61515
There. scroll down to the code snippet posted by Vertex.
I remember that this fixed this error for me.