[ubuntu netbook remix] Netbook remix wireless problem

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http://ubuntuforums.org – Hi , I'm quite new to Ubuntu, I recently broke my laptop and in order to get back online cheaply I bought a second hand netbook. I installed Ubuntu (ubuntu 10.10 netbook remix)in order to speed it up a bit as windows 7 was too much for the 1gb ram. The only problem is I've had problems with the wireless internet ever since, it will disconnect randomly and even when it is connected it will stop functioning every few minutes. I'm living abroad at the moment and rely on skype to keep in touch with my family so any help would be appreciated. PS. I have an atheros driver. (Hardware)