I scoured the posts and could not find someone else that has said anything about this, so this may just be my issue, but I've noticed on a consistent basis that as I click between verses and chorus there is a flash of black screen before the transition. Definitely ruins the flow of it all.
Running a Windows XP machine with the latest build of Proclaim.
Intel Pentium 4, 2.80 GHz, 2 GB of RAM
Other than this issue, I am a huge Proclaim fan.