Blinking textures

I guess blinking my not be the best description, what happens is the ground and any large textures will render a little fuzzy then blink into full resoultion for a second then back to fuzzy for 2 or three seconds then full rez, fuzzy, full rez, fuzzy, full rez, fuzzy, full rez, fuzzy, full rez, fuzzy, full rez, fuzzy, full rez, fuzzy, full rez, fuzzy, full rez, fuzzy, full rez, fuzzy, full rez, fuzzy, full rez, fuzzy, full rez, fuzzy, full rez, fuzzy, full rez, fuzzy....

Sl used to run fine, I have been out for about a week working on another project. I tried setting up dual monitors on my system it worked fine but slowed everything down so much (too much to play SL) so I removed the extra video card and went back to standard mode.

Thats when this problem started.

So far I have uninstalled and reinstalled my main video card.
Installed the latest Nvdia forceware drivers (71.84)

I am not sure what else to try...

Here are my basic system specs (don't laugh I ran SL on less)

Abit VH6T socket 370
P-III 1.2Ghz
1 GB RAM
Nvdia GeForce-3 Ti200 64MB
Windows XP/SP2

FIgured it out! Just thought I would post in case it comes up again

It turns out that when I was trying to run SL on the dual monitor setup, most likeky whe nI moved it to the secondary monitor (that was running on an old 3DFX VooDoo card) it changed the video card memory settings in SL to 16 Meg.

Changeing it back to 64 Meg fixed it