As I said, I had the same problem with the 4496 driver, and the only "solution" was to go back to an older version of the driver (which was the 4363 driver). After release of the 5328 driver I tried to upgrade to that one, and luckily I appeared to belong to the happy few that have a good working combination now (using a GeForce4 488Go card). I know that many other people are suffering the same problem with the 5328 driver as you do. I'm afraid the only solution for you is to try to use an older version of the driver (so the 4496 or even the 4363) and wait till Nvidia releases a better version of the driver.
Cheers,
Thanks a lot for the suggestion Jan but I had no luck. You were right I got this crappy screen with ctr-alt-f1. I tried the 4496 but no success and trying to install 4363 got an installation error that I think should not be bothered to get into. I think (don't know what you think) that trying to go to even older drivers won't be a solution. I'll try to live with this until a new driver comes. Regards, Felipe.