'Plugins' menu disabled when the last score closed but enabled when starting empty
When starting empty, the 'Plugins' menu is active, but once a score is loaded, it becomes disabled, as soon as the last score in MuseScore window is closed.
1. Configure MuseScore to start empty, close MuseScore
2. Open MuseScore
3. Click on 'Plugins' => 'Create Score'
4. Close the score
'Plugins' menu is disabled
The state of 'Plugins' menu after Step 2 and after Step 4 is the same.
MuseScore r2763 on Ubuntu 9.10 with Qt 4.6.1