From the nVidia forum:
http://forums.nvidia.com/lofiversion...hp?t42645.html
The solution did not work but you could give it a go.
also, a linux-related site lists a similar problem on an Intel video-chipset but nVidia worked (newer card than yours, however).
Reading both, especially the linux-related discussion, I would suggest that it is a driver problem with your old card. Probably the best bet would be to buy a new nVidia card for less than $100.
of course, I cannot guarantee it will work.
cheers,
DJDD