This is an expected behaviour. The CLR-team knows this problem and is
not willing to solve it (at least this is my point of view).
You can try SOSEX, which has source-line support:
http://www.stevestechspot.com/SOSEXV2NowAvailable.aspx
--
Greetings
Jochen
My blog about Win32 and .NET
http://blog.kalmbachnet.de/