Seen on Solaris and Linux m238, did not test Windows version: Open Help, go to
Find tab page, enter any string in Search box, click the Find button.
All OOo windows including the Help Viewer are gone immediately.
Linux gives this message:

Fatal exception: Signal 11
Stack:
/opt/staroffice8/program/libuno_sal.so.3[0xb708a15a]
/opt/staroffice8/program/libuno_sal.so.3[0xb708a284]
/opt/staroffice8/program/libuno_sal.so.3[0xb708a331]
[0xffffe420]
/opt/staroffice8/program/libuno_sal.so.3(rtl_allocateMemory+0x3e)[0xb708d4f4]
/etc/staroffice8/program/soffice.bin[0x8081339]
/etc/staroffice8/program/soffice.bin(_Znwj+0x24)[0x80813bc]
/opt/staroffice8/program/libsw680li.so[0xaf7ff0f8]
/opt/staroffice8/program/libsw680li.so[0xaf802e9a]
/opt/staroffice8/program/libsw680li.so[0xaf803672]
/opt/staroffice8/program/libsw680li.so[0xaf802d12]
/opt/staroffice8/program/libsvt680li.so(_ZN21SfxStyleSheetBasePool5CountEv+0x13)[0xb78a4fdf]
/opt/staroffice8/program/libsvx680li.so[0xaec568f7]
/opt/staroffice8/program/libsvx680li.so[0xaec56d04]
/opt/staroffice8/program/libsvx680li.so[0xaec56e57]
/opt/staroffice8/program/libsvx680li.so[0xaec56ec8]
/opt/staroffice8/program/libsfx680li.so(_ZN17SfxStatusListener13statusChangedERKN3com3sun4star5frame17FeatureStateEventE+0x62a)[0xb2b47710]
/opt/staroffice8/program/libsfx680li.so[0xb2b51538]
/opt/staroffice8/program/libsfx680li.so[0xb2b5619a]
/opt/staroffice8/program/libsfx680li.so(_ZN17SfxStatusListener6ReBindEv+0x14a)[0xb2b478a8]
/opt/staroffice8/program/libsvx680li.so(_ZN22SvxStyleToolBoxControl6updateEv+0x45)[0xaec52019]
/opt/staroffice8/program/libfwk680li.so[0xb26517ed]
/opt/staroffice8/program/libfwk680li.so[0xb2651950]
/opt/staroffice8/program/libfwk680li.so[0xb26519c6]
/opt/staroffice8/program/libvcl680li.so(_ZN5Timer7TimeoutEv+0x13)[0xb7c84e27]
/opt/staroffice8/program/libvcl680li.so(_ZN5Timer21ImplTimerCallbackProcEv+0x81)[0xb7c84a53]
/opt/staroffice8/program/libvclplug_gen680li.so(_ZNK10X11SalData7TimeoutEv+0x27)[0xb5405cb7]
/opt/staroffice8/program/libvclplug_gtk680li.so[0xb58d7343]
/opt/staroffice8/program/libvclplug_gtk680li.so[0xb58d7369]
/usr/lib/libglib-2.0.so.0[0xb546b4a8]
/usr/lib/libglib-2.0.so.0(g_main_context_dispatch+0x1d7)[0xb54698d6]
/usr/lib/libglib-2.0.so.0[0xb546c996]
/usr/lib/libglib-2.0.so.0(g_main_context_iteration+0x62)[0xb546ce1e]
/opt/staroffice8/program/libvclplug_gtk680li.so[0xb58d7586]
/opt/staroffice8/program/libvclplug_gen680li.so(_ZN14X11SalInstance5YieldEbb+0x2c)[0xb5411abe]
/opt/staroffice8/program/libvcl680li.so(_ZN11Application5YieldEb+0x5f)[0xb7c7ec23]
/opt/staroffice8/program/libsvx680li.so[0xaeb614a5]
/opt/staroffice8/program/libsvx680li.so[0xaeb520cf]
/opt/staroffice8/program/libsvx680li.so[0xaecf693d]
/opt/staroffice8/program/libsvx680li.so[0xaecf745a]
/etc/staroffice8/program/soffice.bin(_ZN7desktop19impl_callRecoveryUIEhhh+0x485)[0x8062e9f]
/etc/staroffice8/program/soffice.bin(_ZN7desktop7Desktop9SaveTasksEv+0xe)[0x80630c0]
/etc/staroffice8/program/soffice.bin(_ZN7desktop7Desktop9ExceptionEt+0xb7)[0x806317d]
/opt/staroffice8/program/libvcl680li.so[0xb7c83b11]
/opt/staroffice8/program/libvos3gcc3.so(_ZN3vos26signalHandlerFunction_implEPvP13oslSignalInfo+0xf)[0xb74ff857]
/opt/staroffice8/program/libuno_sal.so.3[0xb708a1cc]
/opt/staroffice8/program/libuno_sal.so.3[0xb708a317]
[0xffffe420]
/opt/staroffice8/program/libucpchelp1.so[0xb0b31ff1]
/opt/staroffice8/program/libucpchelp1.so[0xb0b32eba]
/opt/staroffice8/program/libucbhelper4gcc3.so[0xb7550d32]
/opt/staroffice8/program/libucbhelper4gcc3.so(_ZN9ucbhelper19ResultSetImplHelper18getStaticResultSetEv+0x6a)[0xb7550de0]
/opt/staroffice8/program/libsfx680li.so[0xb2becfe8]
/opt/staroffice8/program/libsfx680li.so[0xb2a0e0a5]
/opt/staroffice8/program/libsfx680li.so[0xb2a0e438]
/opt/staroffice8/program/libvcl680li.so(_ZN7Control32ImplCallEventListenersAndHandlerEmRK4LinkPv+0x6a)[0xb7e5d746]
/opt/staroffice8/program/libvcl680li.so(_ZN6Button5ClickEv+0x25)[0xb7e52633]
/opt/staroffice8/program/libvcl680li.so(_ZN10PushButton8TrackingERK13TrackingEvent+0x162)[0xb7e56348]
/opt/staroffice8/program/libvcl680li.so(_ZN6Window11EndTrackingEt+0x117)[0xb7e4ed47]
/opt/staroffice8/program/libvcl680li.so[0xb7e4c1c4]
/opt/staroffice8/program/libvcl680li.so[0xb7e4c53a]
/opt/staroffice8/program/libvclplug_gtk680li.so[0xb58f71e6]
/usr/lib/libgtk-x11-2.0.so.0(_gtk_marshal_BOOLEAN__BOXED+0x58)[0xb57108e0]
/usr/lib/libgobject-2.0.so.0(g_closure_invoke+0x11e)[0xb54d379f]
/usr/lib/libgobject-2.0.so.0[0xb54e22ea]
/usr/lib/libgobject-2.0.so.0(g_signal_emit_valist+0x41d)[0xb54e3886]
/usr/lib/libgobject-2.0.so.0(g_signal_emit+0x29)[0xb54e3e89]
/usr/lib/libgtk-x11-2.0.so.0[0xb57f2dcf]
/usr/lib/libgtk-x11-2.0.so.0(gtk_propagate_event+0xb7)[0xb570f05d]
/usr/lib/libgtk-x11-2.0.so.0(gtk_main_do_event+0x300)[0xb570f46b]
/usr/lib/libgdk-x11-2.0.so.0[0xb55b2dec]
/usr/lib/libglib-2.0.so.0(g_main_context_dispatch+0x1d7)[0xb54698d6]
/usr/lib/libglib-2.0.so.0[0xb546c996]
/usr/lib/libglib-2.0.so.0(g_main_context_iteration+0x62)[0xb546ce1e]
/opt/staroffice8/program/libvclplug_gtk680li.so[0xb58d75b2]
/opt/staroffice8/program/libvclplug_gen680li.so(_ZN14X11SalInstance5YieldEbb+0x2c)[0xb5411abe]
/opt/staroffice8/program/libvcl680li.so(_ZN11Application5YieldEb+0x5f)[0xb7c7ec23]
/opt/staroffice8/program/libvcl680li.so(_ZN11Application7ExecuteEv+0x2f)[0xb7c7ec75]
/etc/staroffice8/program/soffice.bin(_ZN7desktop7Desktop4MainEv+0x21fa)[0x806cfc0]
/opt/staroffice8/program/libvcl680li.so[0xb7c845e4]
/opt/staroffice8/program/libvcl680li.so(_Z6SVMainv+0x29)[0xb7c8476f]
/etc/staroffice8/program/soffice.bin(main+0xe2)[0x805f4d6]
/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xd2)[0xb6c3fea2]
/etc/staroffice8/program/soffice.bin(_ZN6Window11RequestHelpERK9HelpEvent+0x39)[0x805f361]
/usr/bin/soffice: line 240:  4479 Aborted                 "$sd_prog/$sd_binary" "$@"