Problem with GDB and gfortran

[webdev]

I can't get anything useful from GDB 6.8 (GNU debugger) on a program compiled with gfortran. I compiled testprog.exe with gfortran using the flags -g and -o (and no other flags) with gcc version 4.5.0. It runs OK, I tried using GDB with it to learn about GDB, but without success. Problems...