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I am new to GIS. I downloaded GRASS and the sample data sets and am attempting to use the tutorial at: http://grasswiki.osgeo.org/wiki/Quick_wxGUI_tutorial. During the step, "Create a random surface", I get the error:

ERROR: G_malloc: unable to allocate 536870912 bytes of memory at spec_syn.c:50

My computer should be plenty powerful... 8GB RAM, Windows 8, 64-Bit

Any ideas why I can't seem to get through even the most basic tutorial?

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