Same thing here with amuled (amule works fine!):
----------------------------=| BACKTRACE FOLLOWS: |=----------------------------
Current version is: aMuled CVS using wxGTK2 v2.6.1 (Unicoded) (Snapshot: Wed Nov 9 07:02:01 CET 2005)
Running on: Linux 2.6.13 i686
[2] ?? in amuled [0x8062447]
[3] wxFatalSignalHandler in /usr/lib/libwx_baseu-2.6.so.0[0xb7ecefc6]
[4] ?? in [0xffffe420]
[5] __pthread_mutex_lock in /lib/tls/libpthread.so.0[0xb7f33d94]
[6] wxMutexInternal::Lock() in /usr/lib/libwx_baseu-2.6.so.0[0xb7ec7f6c]
[7] wxMutex::Lock() in /usr/lib/libwx_baseu-2.6.so.0[0xb7ec7fe3]
[8] ?? in amuled [0x805512c]
[9] ?? in amuled [0x8054052]
[10] ?? in amuled [0x8054369]
[11] wxEntry(int&, wchar_t**) in /usr/lib/libwx_baseu-2.6.so.0[0xb7e7251b]
[12] wxEntry(int&, char**) in /usr/lib/libwx_baseu-2.6.so.0[0xb7e725ee]
[13] __gxx_personality_v0 in amuled[0x80531e5]
[14] __libc_start_main in /lib/tls/libc.so.6[0xb7b92ec0]
[15] wxAppConsole::Initialize(int&, wchar_t**) in amuled[0x80530b1]
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cheers