Hello Bogdan!
You can send your score and Playback Configuration (xml file and data folder) to ![support [at] vsl.co.at](http://members.chello.at/~olszewski/vsl/support_vsl.png)
Depending on your system and Sibelius version, the Playback Configurations can be found in one of the following folders:
Documents and Settings\your username\Application Data\Sibelius Software\Sibelius 6\Playback Configrations
or
Documents and Settings\your username\Application Data\Avid\Sibelius 7\Playback Configrations
Windows Vista and Windows 7:
Users\your username\AppData\Roaming\Sibelius Software\Sibelius 6\Playback Configrations
or
Users\your username\AppData\Roaming\Avid\Sibelius 7\Playback Configrations
Mac OS X:
Users/your username/Library/Application Support/Sibelius Software/Sibelius 6/Playback Configrations
or
Users/your username/Library/Application Support/Avid/Sibelius 7/Playback Configrations
Best,
Andi