Stuck notes get louder if I press the mimi panic/reset button

Hi. I have a Roland BK-5 connected (via USB) to my Sonar X2 Essential (64bit Win7). When I record or play a complete Performance sometimes some notes get stuck. Wenn I press the panic/reset button, the notes don't stop playing. Instead the get a bit louder.
 
I already tried to to change PanicStrength from 0 to 1 in the cakewalk.ini file. But the behaviour didn't change.
 
Has anyone some idea about this??? Would be great and thanks in advance.

Thank you for your Reply. I tried it, but unfortunately it didn't work.
 
I tried serveral other things. Here a more precise definition of my problem:
 
Sonar is armed with 16 MIDI-Tracks. My Roland BK-5 has loaded a performance where you can play an upper part (song) and with the lower part (down of the split point) I have some backing sound (rythm and other insturments/acc).
 
MIDI local ist OFF. If a have no ECHO aktivatet, i hear nothing if a play something on my keyboard (correct). BUT if I aktivate the echo on track 10 and start the backing sound, some acc-sound (not the drum!) like strings, get stuck.
 
It seems that some data ist transmitted just and only at the beginning, even if the data schould not be transmitted on this track.
 
Maybe it's a problelm with my keyboard?
 
Has anyone a good idea?
 
But also still the problem, that the panic button doesn't work, remains.

For the stuck notes problem during playback, have you tried raising Sonar's MIDI prepare buffer to 500 ms?
 
For the getting louder issue, on reset or panic, the volume parameters, e.g. CC7, get set to nominal (max), so if you had set a midi volume lower than that, the notes will get louder when the panics are sent. Why notes are not stopped with the "all notes off" command, I don't know, other than maybe the MIDI prepare buffer. Or maybe the BK-5 doesn't respond to "all notes off"?
 
Data transmitted at the beginning of playback includes some non-note data, such as program changes and volume changes, as configured in track headers. Some h/w synths may be sluggish in setting up programs and may process beginning notes with some lag. Maybe then there is a buffer overflow in the synth...? Sometimes I start song data at measure 2 and start playback at measure 1 to overcome the clogging of program/patch change and volume changes before the notes start.

Here is the latest software and drivers:
http://www.roland.com/support/article/?q=downloads&p=BK-5