Title: First Note Played May Not Get Erased
On Windows, on machines using a NVIDIA card for graphics, the first note you play may not get erased when you release it. This seems to happen when you click on a note when some other window already has focus.
Cause Of Problem:
Erase the errant note-mark by hitting the Esc-key, or clicking the “Panic” button. You can avoid the problem by making sure the main KeyMusician Keyboard window is focused (highlighted) before you click in its musical staff area (to play a note with the mouse).
Fix Available (in version):