1) I've uninstalled and reinstalled SL.
2) I've verified that I have the latest drivers (as I mentioned I did in the prior post).
3) Since City of Heroes, Silkroad Online, Far Cry, Lego Star Wars, etc all run beautifully with no slow down or choppiness, and I only noticed the problem in the last month, I'm guessing its Second Life... its the only program affected.
4) Cleaned the registry, deleted the cache, defragged the drive, ran HiJack This, virus checked, etc ( I know what I'm doing

).
5) Lowered all the graphics settings and made the camera appearance changes that Vlad suggested ( must be a new setting, I never noticed that before...)
6) Checked all services that are running against the ones recommended at Black Viper.com
7) Running Sygate Personal Firewall, Spybot Search and Destroy (resident), and StartUp Monitor.
Just waiting for the grid to come back online after this mornings patch to test it out.
As for what I'm running...
Intel 2.66 gHz Pentium Prescott (the one without the hyperthreading)
Windows 2000 Service Pack 4
Nvidia 5200 AGP at 4xAGP on the motherboard
1 gig ram
Honestly, SL runs so crappy lately I'm losing interest, so I'm not sure I care if this problem gets solved or not. But its free, and I have no reason to complain about it. I have had no problems at all until about a month ago, and I've been here almost a year now. Its just someplace I check in every once in a while. Its fun when it works.
Demented Coffee