Comment 14 for bug 384937

Wow, strange it wasn't caught in alpha-2 testing then. Btw, you don't need to download the image again to check that it is without errors, you can just check the MD5 sum:
gomyhr@storhaugen:~$ md5sum karmic-desktop-i386-alpha2.iso
e42cfbecfb1d1cc493bdb5053b0f5f44 karmic-desktop-i386-alpha2.iso

The MD5 sums of the images are available in the same directory as the files themselves:
http://cdimage.ubuntu.com/releases/9.10/alpha-2/MD5SUMS