Here you go, from the Curious Labs Web site.: "This memory handling updater will allow Poser 4.03 users who have greater than 1 GB of total memory (RAM + virtual memory = more than 1 GB) to run normally." Notice, total memory, includes both swap file and RAM. However, cyberscape has Poser 5, so this is not relevant. Your computer does a POST (Power On Self Test), in which it will recognize your memory, etc.