Temporarily blacklist e1000e.
The e1000e driver is currently believed to cause onboard flash checksum errors in
the 2.6.26 through 2.6.27-rc7 series kernels. These checksum errors
can become severe enough to permanently disable the operation of the
ICH8/ICH9 based e1000e NICs.

For reference, please see:

http://bugzilla.kernel.org/show_bug.cgi?id=11382
http://news.opensuse.org/2008/09/22/serious-e1000e-driver-issue-in-sle-11-beta-1-and-opensuse-111-beta-1
https://bugs.launchpad.net/suse/+source/linux/+bug/263555

This is hopefully a temporary measure.
LP: #263555