I discovered that the latest driver for my computers ethernet-adapter did not work. I fixed this by downloading an earlier driver, which worked perfectly.
However every time I run "apt-get upgrade", the driver I have downgraded gets updated. While simply reinstalling the old driver fixes the issue, it's quite annoying.
I'm running Ubuntu 11.10 64-bit. The driver that works is "r8168" and the newer driver that doesn't work is "r8169".
Is there a way to tell apt not to install the newer, not working, driver?