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I recently built a computer and installed ubuntu on it. The wireless i put into it was taken out of a HP Pavilion Slimline s5-1024 Desktop. I checked on the internet and the wireless card is Ralink corp RT5390 wireless 802.11n 1T/1R PCIe. Every time i get on my computer, it acts as if everything is ok, but i cant find my home internet and most of the options are dark so i cant click on them. I am very new to all of this and i would just like my wifi to work. would installing a driver for it help? Do i have to get a different adapter?