Richard,
I did the same install of the retail package, on a laptop. I used 5336, downloaded and run directly from root.
I am using the same software you are, on a Dell C840 with a GeForce4 440 Go.
Maybe you should try that driver package first.
Also, see this thread, where I got a little help from the people on this forum:
http://www.nvnews.net/vbulletin/show...threadid=24740
BB