i've got a Realtek wifi card about which Terminal says,
03:01.0 Network controller : Realtek Semiconductor Co., Ltd. RTL8190 802.1
in my Dell Vostro 220. Windows 7 uses it fine, but Ubuntu can't seem to see it. i set up a wifi connection in the Network prefs but it doesn't show up in the drop-down network menu in the upper right corner of the screen. 99% of the questions i see asked about this online are answered either with questions or with instructions to go to
System Settings -> Software & Updates -> Additional Drivers, where i imagine one is expected to find something but i find nothing - the box in that pref pane tab is empty.
i update the OS every time updates are reported and i last updated it about five minutes ago.
I've downloaded drivers from Realtek's site, but I'm new to Linux (and the ridiculous amount of work it requires you to do in order to accomplish the simplest tasks) and I have no idea which version of an archive to download nor what to do with all those files in the archive once i expand it.
can somebody help with this? preferably in some way i can understand without a degree in computer science? i want to use this OS, not spend the rest of my life learning how to make it function.