I think this can be your internet issue other than this you can try out the following command using which even if the download discontinues in any time, after subjecting this command loading will again re-started from the point it stopped and there is no need to start with the download again.
Code:
wget -c http://sourceforge.net/projects/gparted/files/gparted-live-stable/0.5.4-1/gparted-live-0.5.4-1.iso/download
I think after this command you will be able to download GParted application on your system for partition work.
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