Hello.
Amaya 11 crashes on Mac OS 10.4 when you proceed as the following:
- open Create link dialogue window
- clic on Open file dialogue window ('parcourir')
- back to create link window clic on cancel
- in open file window clic on cancel
then Amaya crashes with the reports:
Version: 11.0. (11.0.)

PID:    276
Thread: 0

Exception:  EXC_BAD_ACCESS (0x0001)
Codes:      KERN_PROTECTION_FAILURE (0x0002) at 0x00000000

Thread 0 Crashed:
0   <<00000000>> 	0x00000000 0 + 0
1   fr.inria.amaya                 	0x003210c4 wxTopLevelWindowBase::~wxTopLevelWindowBase [unified]() + 268
2   fr.inria.amaya                 	0x0031f2e4 wxTopLevelWindowMac::~wxTopLevelWindowMac [unified]() + 280
3   fr.inria.amaya                 	0x00326de0 wxDialog::~wxDialog [unified]() + 132
4   fr.inria.amaya                 	0x006f4980 wxFileDialog::~wxFileDialog [in-charge deleting]() + 544
5   fr.inria.amaya                 	0x003887b8 wxAppBase::DeletePendingObjects() + 120
6   fr.inria.amaya                 	0x00379c20 wxApp::MacDoOneEvent() + 196
7   fr.inria.amaya                 	0x004ce1d4 wxEventLoop::Dispatch() + 52
8   fr.inria.amaya                 	0x004c95d0 wxEventLoopManual::Run() + 252
9   fr.inria.amaya                 	0x00388488 wxAppBase::MainLoop() + 128
10  fr.inria.amaya                 	0x00374010 wxEntry(int&, wchar_t**) + 124
11  fr.inria.amaya                 	0x001425b0 main + 24
12  fr.inria.amaya                 	0x00002598 _start + 392 (crt.c:267)
13  dyld                           	0x8fe01048 _dyld_start + 60

Hope this help, Pascal.