Comment 8 for bug 643788

blue dream, my (simple) solution is to install linux-image-2.6.32 besides 2.6.35.
You need to download the kernel from here :
http://packages.ubuntu.com/lucid-updates/linux-image-2.6.32-25-generic
sudo dpkg --install linux-image-2.6.32-25-generic_*.deb
sudo update-grub

From this point, In the grub you 'll have the possibility to boot on linux-image-2.6.32 and then aircrack will work ,except if your'r in the same case than needlez6 !