vshost32-clr2.exe stops working for unhandled exception in visual studio 2010

Hi,
I am using Visual Studio 2010 for Developing Applications, But it crashes if it get across unhandled Exceptions in VS10 and do not allow to debug the Exception.
 
I am Developing Simple Database Application. Backend as Oracle.
Normally this happens if there is error while opening Connection to Oracle.
 
If I surround con.Open() statement with try catch block all works fine.
I dont have any Addons or Special Components or References installed or Added in my project.
 
When i installed VS10 it was debugging unhandled Exceptions...
 
I Googled this problem but did not find helpfull answer.. Also tried to change settings in tools-options-debugging... but did not help!
 
please let me know proper solution..
 
Prathamesh