Kernel version 2.6.29 added agp-intel which provides support for Intel's G41 chipset. So it makes sense to me that I had to run:
sudo aptitude safe-upgrade
before jaunty (kernel version 2.6.28) would provide graphics on my G41 motherboard. How do I verify whether I now have agp-intel? More broadly, I am asking whether a kernel upgrade would be helpful in the context of G41 support.