hi....

i just got VISUALMARKER. Its a software that let u create BVH motion through 2d video and add markers on it for tracking. Basically there are 5 views for 3d space, front, back left right and perspective. But when i change the view other than perspective, it turns empty. Am i missing something or the program itself encounters error?? any idea of fixing this? Im hoping that someone reply me.. :-). Thanks!!!