I just realized that on my netbook, the list of available proprietary drivers (called "Additional Drivers" in the Administration-Menu) is empty. I'm pretty sure before updating to Maverick, I had proprietary drivers installed.

Is it normal, that the list is empty now? If not, how can I fix it? I have all sources activated, also there seems to be no difference in sources.list and sources.list.distUpgrade (other than the change lucid->maverick)