Got "the inferior stopped ..." when debug

Hi All,

I am using QT4.6.
when try to debug the application,even set a breakpoint at the first line of main.cpp
I will get a popup window :

Signal received:
The inferior stopped because it received a signal from
the operating system.
signal name:sigsegv
signal meaning: segmentation fault

and it also show a window contain assemble codes.

Any ideas about it?
Thanks for your time

Best regards,
hb

btw :
I do set build configuration to debug mode (windows platform)

anyone knows about it?
I encounter the problem after install qt-sdk-win-opensource-2009.05.exe

Thanks.
hb

Hi All,

The reason has been found out, it was caused by comodo fire wall,
it will block the debug feature, I have tried nearly all version of QT4.6　
to find out the reason.

Marry X'mas :)

Thanks,
hb