When asking for help, always give as much info as possible. For example, you haven't given us the most crucial piece of info: what C::B version are you using???
Oops. I'm using the most recent version (of course), the one with MinGW included, under Windows. I've no idea about the other things Takeshi Miya specified.
You could change the description of the 'Troubleshooting' sub-forum to i.e.
"Are you having a problem? Look in here.
Please specify Code::Blocks version, OS, wxWidgets version, Unicode/ANSI, Compiler version, Debugger version, Obtained from (svn/tgz source/win32 package/linux binary) and Build from (autotools, project files)."