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Those requirements haven't changed since Poser 5 or 6. It's complete misinformation and they should really change it. It's enough to start up Poser 8, but how much fun is that? Just starting up P8 and not being able to do anything with it is very dumb, who would want that?

It's about time for these incorrect figures to be corrected.

Yeah, that's what I've been saying.
And as Cage pointed out, the minimum system requirements are barely even in line with the minimum system requirements of Vista, a supported operating system. Aside from Vista Home basic, all the other Vista versions call for at least 1 GB of system RAM.
When I was running Vista Ultimate, it used 1.5 GB just to load itself and the background processes I allowed, such as Adobe Bridge and my Wacom software, Steam, and some other essentials.