Also, after updating to 9.10 I had several apps that would only run for a bit and then would close.
apps like
Gwibber (for twitter)
The new Ubuntu Software Center
When opening them up from the terminal I would get this error
"ERROR: Caught a segmentation fault while loading plugin file:
/usr/lib/gstreamer-0.10/libgstlibvisual.so"
so after doing some googling someone said to just remove it, rename it or move it.
So I ran this command to move it and rename it
mv /usr/lib/gstreamer-0.10/libgstlibvisual.so libgstlibvisual.so.OLD
after that everything worked great.