Getting a problem while developing outlookaddin with c#.net form

Hello,

I am developing outlook addin in c# . It adds two toolbars or
(command bars ) and some buttons (command buttons) to the command bars .
Each command has its own functionality .

Among those command buttons , there is a button called "preference
button"
when pressed , displays a C#.net form named "preference form". When once I
presses this"preference button" button , c#.net form is appearing and is
working and then onwords the other command buttons are not working and ,
also The "Preference button" itself is not working afterwards. If I open
the
"Outlook" and I didn't press "preference button" at any time , The
remaining buttons are working fine without any failure.

I am not able to understand what is being happening while I presses
"preference button" .

Kindly help in this regard. Explain any solution for this problem.


Is there any websites regarding this problem.

"Thanks for any kind of help".

with regards,
Balu.