First, your comp definitely came with a graphics card, but it isn\'t very good (like mine

). Second your processor and RAM are a bit low for the game (ok, very low. It barely runs on my 667 TiBook with 1024 MB RAM). Third, I\'m not sure how the game runs on the Powerbook in 10.2 as I always run it in 10.3. Fourth, I don\'t turning down setting will fix this problem. One thing you can try is seeing if there is any output in the Console. You can do this by opening /Applications/Utilities/Console(.app), clearing the log, and then copy/pasting the output into a forum post. If it is really really long, you may want to email it to me and/or dfryer.
If you can get OS 10.3 or 10.4, try installing those and giving it a shot. Whatever you do, tell us how it goes.
P.S. To convert that PDF to a JPEG, get a copy of GraphicsConverter at
http://lemkesoft.com .