SynthFont has been updated to version 1.556.

Bug fixes:

• Versions 1.554 and 1.555 had a bug causing it to draw the Pianoroll badly when the Grid Size was set to more than 1. Additionally the "Show Scale" checkbox in "Key Signature and Melodic Scale" did not work (notes were not grayed).
• Some MIDI files were not correctly read.
• Keys used as shortcuts could not be used to navigate to files in the Explorer list.
• After editing and saving a SoundFont group file in use by a track, the track presets were not updated.
• The playback position in the Pianoroll did not respond to a user change of the BPM factor (in "Plug & Play").

Other:

• The shortcut key for pause/resume playback used to be "W" or "Pause/Break". It is now only "Pause/Break".