HI,
have the same card as you and had same problems.
Also got a loop when i was gaming.
i have installed the:
http://www.ngohq.com/home.php?page=F...eme&dwn_id=269
drivers.
Problems are gone.
Newest ones are no good for older AGP cards.
Also mailed with Gainward service desk, they told me the same.
Do it, and you will notice, better image, smoother run, and no problems like that anymore.
Also on my older computer with a FX5900XT i installed older drivers.
Also here, better performance !
I think this is the answer for your problem, like it was for me.
greetings, wimpy