[ubuntu] GParted cannot resize linux partition

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http://ubuntuforums.org – System specs: Acer Aspire 5738Z, Ubuntu 11.10 with GParted. 320GB hard-drive. (GParted is confused, the total of all partitions is 426GB, but the manufacturer's sticker clearly says "320GB HDD".) I had allocated 10GB to Ubuntu during the installation a year and a bit ago. I thought that I could have a copy of any file on my windows partition, so I wouldn't need it on the Ubuntu one. But that recently has been too much of a hassle, so I've decided that I'd extend my linux partition, I'm supposed to have 320GB and I've hardly used any of it! But, with hard drive partitions, there are (Hardware)