Attached Link: http://www.crucial.com/

Rockets, programs like Poser need all the memory they can get if you're doing complex images. Do you know the maximum amount of memory your computer can handle? Do you know if it takes SDRAM simms? You could ask HP about that. My computer is about a year old (home built). I use SDRAM memory. The maximum on my motherboard is 512MB. Right now SDRAM memory is dirt cheap. The last time I bought 256MB of SDRAM, it cost under $20. I bought it from crucial.com, and they shipped it to me Next Day, for free shipping. You'd need to do a bit of research for your HP computer. Crucial does have a chart that helps you figure what kind of memory you need. Mine is "generic," which helps. Ron