Almost two days I have crash in my Inkscape (Inkscape 0.47pre4 r22446 (Oct 14 2009) running on wider machine (Linux wider 2.6.31-19-generic #56-Ubuntu SMP Thu Jan 28 01:26:53 UTC 2010 i686 GNU/Linux). There are problem when I type some text and then click to other places or choose another tools, the inkscape going crash and make backup files located in my home directory (/home/andrew/New document 1.2010_02_09_12_04_55.0.svg). and this is the error message:

Inkscape encountered an internal error and will close now. Automatic backups of unsaved documents were done to the following locations:

To find the error, I used terminal to launch inkscape application, doing same case with create text and choose another tools, and there are going error again, in my terminal i am find the error message below:

Gdk:ERROR:/build/buildd/gtk+2.0-2.18.3/gdk/x11/gdkinput-xfree.c:336:_gdk_input_grab_pointer: assertion failed: (input_window != NULL)

I am find some bug report about this case here and there are many alternative to solve the problem, the result is different depend on machine  related. i am try to applied another trick to solve the crash problem, finally this is the succes trick to solve the inkscape crash ini my machine:

$ vim .bashrc

add this code at the bootom line

unset GTK_IM_MODULE XMODIFIERS

logout and the Inkscape can work well to text editing