Question about bath rendering in rhinoscript

Hi all,

I am using the batch render script from Mcneel's website:

http://wiki.mcneel.com/developer/scriptsamples/rendernamedviews

For some reason, when I try to render several views, it always pops up 'wait
until current view to finish' window. I think the looping system in this
case is faster than the render itself.

Does anyone know how to solve this problem?