Hello,
I have just built C::B rev2564 (GCC 4.1.1, wxWidgets 2.6.3 patch 2) and after some testing it seems that the split view does not work. Whatever I chose, I get a grey screen (the same when I close a file and there are no other opened ones). The file is always seen as open, but not available. I have to close it and re-open it.
Best wishes,
Michael