Comment 8 for bug 505987

Still apparent on WinXP with bzr installed from bzr-2.1.0rc1-1-setup.exe, explorer 1.0.0dev r407, qbzr 0.18.0 r1190

It is in some way a 'sensitivity' to the content or format of the branch being explored. It is triggered inspecting a file in bzr-explorer r407, but NOT when inspecting qbzr r1190.