Legions runs fine for me with this system, but the new Nebula Station map will load but locks up whole system before GUI of map appears- 2005 Sony all-in-one computer (VGC-VA10G) with ASUSTek "Enlil" mobo; P4 "Prescott" CPU 3.00GHz (Instruction Set only goes up to SSE2); ATI Radeon Mobility X700 Graphics card (w/ only 128 MB G-Ram & Pixel Shader 2 only); & the max amount of System Ram you can install is 1GB! And out of that 1 GB comes your O.S. (Win 7 32-bit) & whatever else that's downloaded. At any given time my meter shows System Memory @ 55% in use which leaves only about 400MB for Legions to run on, + the 128 MB G-Ram which is slightly more than a 1/2 GB total Ram, and as I've stated gameplay is fine (except for Nebula Map).