Hi BSPeter!
I don't know if now (build 814) the problem is gone, but the skin bug was introduced in build 807 (maybe before), but if I remember, still remains in later builds.
All the rgn.dat files posted in
http://forum.bsplayer.org/viewtopic.php?t=6041 post, are made with pre-version 1.00 just because there was a problem in the rgn.dat creation with BSplayer v1.00.8xx.
Maybe now the problem is gone, but I don't have time now to test it, but as soon as I can, I will verify it.
Here is a link to another skin engine bug (introduced in build 814):
http://forum.bsplayer.org/viewtopic.php?p=18705#18705
However thank you very much for your constant activity at the forum!
Bye