Studio Instruments Strings Section continues to play a note

Hi,
I open up Cubase LE Elements 6 (32 bit)
I add the vst instrument SI string.
Open the midi editor.
Write some notes (c, quater note first bar, d quarter note second bar....)
and play.
First note plays, it does not stop,
then second note plays and it does not stop
then third note plays and it does not stop.
Even when I stop playing, the sound keeps on generating.
I have to go to vst panal and click on the stop button for the sound to stop.
When  look st CC64 (Sustain), default is 0, or if I edit it and make it 127, still the sound keeps on playing.
Truning Sync to Host (on or off) does not do anything.
 
So basically once the note play, it does not every stop.
Is this a bug ?
Is there some setting that I am missing ?
I purchased and registered SI Studio insturments from Calkewalk downloads 1 month ago, (July 2012).
 
Here is the system spec:
Win 7 Ultimate (64 bit)
Cubase LE Elements 6 (32 bit)
Intel Core 2 Quad CPU q9450
8 gb RAM
 
 
If somebody can help out, that will be great.
If anybody has any ideas, please let me know.
 
Thanks.
-V-