Just find out it is not just my problem! It seems to be a common bug.
TVTool user "Yop83" has confirmed that he also have the same problem even with the latest 499 build...
See his tread at TVTool forum:
http://www.tvtool.info/dcforum/DCForumID11/288.html
No solution jet...
Waiting on next BSplayer/TVTool build...