.52 Scroll Lock doesn't work

[Saga Musix]

Full Version:
OpenMPT v1.17.02.52

Has the bug occured in previous versions? If yes, please specify version(s): (This option is optional, and doesn't need research. But in case you know...)
not tested.

Description of the bug:
You can't use Scroll Lock in your keyboard layout. If you press it, it will automatically be deactivated again.

Edit: Moved to the issue tracker: http://bugs.openmpt.org/view.php?id=13