Are you refering to
this? Have him find out how much video memory he's got. It says (if I'm reading it all correctly) that it will work with 64MB of video memory, but recommends 256MB. Same with system RAM, will work with 512MB, but recommends 1GB. I've never really worked with 3D programs, other than gaming, so I can't say for sure, but if it's between upgrading the video card or the RAM, probably getting a new video card designed for 3D graphics is going to be top priority. As long as he indeed does have enough RAM, otherwise he might have to upgrade both. Make sure he looks at the system requirements for the program, and knows exactly what his computer has.