I've had the same problem after upgrading to Hardy. GNOME was crashing the X server every time. Applying the patch from http://gitweb.freedesktop.org/?p=xorg/xserver.git;a=commitdiff;h=7018f280406eb0ef899a4046de274cfdd582881b;hp=66f8001b61d12eaf4905ac71ccbb3f304914d00d as mentioned in http://<email address hidden>/msg74082.html to the source package solved the problem.
I've had the same problem after upgrading to Hardy. GNOME was crashing the X server every time. Applying the patch from http:// gitweb. freedesktop. org/?p= xorg/xserver. git;a=commitdif f;h=7018f280406 eb0ef899a4046de 274cfdd582881b; hp=66f8001b61d1 2eaf4905ac71ccb b3f304914d00d as mentioned in http://<email address hidden> /msg74082. html to the source package solved the problem.