Thanks for helping with the explanation, Paul ; )
I do have the latest Wacom driver installed, yes.
Right-click should work in every software while the pen is in the air, in close proximity to the tablet - that's the default functionality of the Wacom pen.
The question is, why with some brushes TVPaint recognizes tip pressure, while the pen is not even in contact with the tablet...
Actually there is a setting in Wacom options where you can choose if you want the right click to work without tapping the pen, or with it. I always used the first (the default) option, and it worked great for all I do. If I switch it to the second - Click & Tap option, then those weird brushes work normal, but all other functionality is just not convenient to me, because now I need to touch the screen with the pen every time I want to right-click... I hope I make myself clear? : /
At home: MacBook Pro, Os 10.6.8 (2.3 GHz Intel Core i7, 16 GB RAM), Cintiq 12", TVP Std 9.5
At work: PC, Windows 7, Cintiq 22", TVP Pro 10.5.3