I don't know exactly which menu it was but maybe the stack tells something. It happened when I wanted to leave MG :
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `./megaglest'.
Program terminated with signal 6, Aborted.
#0 0x00007f02c5294425 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#0 0x00007f02c5294425 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f02c5297b8b in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2 0x00007f02c528d0ee in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3 0x00007f02c528d192 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
#4 0x00000000006c44e6 in Glest::Game::Program::loopWorker (this=0x17b68d0) at /home/tscharn/glest/megaglest/source/glest_game/main/program.cpp:399
#5 0x00000000006a9227 in Glest::Game::ExceptionHandler::handleRuntimeError (msg=<optimized out>, getStackTraceString=true) at /home/tscharn/glest/megaglest/source/glest_game/main/main.cpp:652
#6 0x00000000006a934f in Glest::Game::handleSIGSEGV (sig=<optimized out>) at /home/tscharn/glest/megaglest/source/glest_game/main/main.cpp:5196
#7 <signal handler called>
#8 0x0000000000a21402 in cleanup (this=0x2d89050) at /home/tscharn/glest/megaglest/source/shared_lib/sources/platform/common/simple_threads.cpp:383
#9 Shared::PlatformCommon::SimpleTaskThread::~SimpleTaskThread (this=0x2d89050, __in_chrg=<optimized out>) at /home/tscharn/glest/megaglest/source/shared_lib/sources/platform/common/simple_threads.cpp:366
#10 0x0000000000a21569 in Shared::PlatformCommon::SimpleTaskThread::~SimpleTaskThread (this=0x2d89050, __in_chrg=<optimized out>) at /home/tscharn/glest/megaglest/source/shared_lib/sources/platform/common/simple_threads.cpp:375
#11 0x0000000000a237ca in Shared::PlatformCommon::SimpleTaskThread::execute (this=0x2d89050) at /home/tscharn/glest/megaglest/source/shared_lib/sources/platform/common/simple_threads.cpp:496
#12 0x0000000000a6797f in Shared::Platform::Thread::beginExecution (data=<optimized out>) at /home/tscharn/glest/megaglest/source/shared_lib/sources/platform/sdl/thread.cpp:85
#13 0x00007f02c8e16fd5 in ?? () from /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0
#14 0x00007f02c8e5a999 in ?? () from /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0
#15 0x00007f02c8beee9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#16 0x00007f02c5351cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#17 0x0000000000000000 in ?? ()
