[boost] Using Boost Test

Hi, We're currently using boost::test in one of our projects. I'm seing a difference in behaviour between unittests compiled on two different machines. On one machine, the unittests run to completion, reporting failure(s) and fatal errors when accessing invalid memory. On the other, the unittests stop execution on the first fatal error. They also dump details of memory leaks. It's the same code, compiled in the same way. Can someone explain why this is? Thanks, George Russell