[ubuntu] Can't detect wireless (Acer Aspire One D257)

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http://ubuntuforums.org – Hi! I installed Ubuntu 10.10 on my Acer Aspire One D257 and it can't detect wireless (the indicator and FN+F3 aren't working). The same problem is in Ubuntu 10.04 I'm a novice in Ubuntu and any help would be greatly appreciated. (Hardware)