[boost] [test] Untraceable Boost.Test framework internal error: unknown reason

Hi, I'm using Boost 1.37.0 (Ubuntu Jaunty). When I run my testcases, they seem to complete well, but just before the end of the program exit, I get this error from Boost UTF: Boost.Test framework internal error: unknown reason FATAL: exception not rethrown Aborted I spent an hour trying to figure out 1) how to find out where the exception was thrown and 2) if the exception catching in boost could be disabled such that a simple gdb backtrace could point me to it. I have the suspicion that one of the signal handlers that boost UTF installs gets triggered, but I also did not find any way to disable the boost signal handlers. I'm really out of options... Any help/hints (would upgrading boost help?) really appreciated. Peter