LOL - true.
Sorry, 9800 for me still is the 9800pro from ATI. Shouldn't post and talk on telephone the same time.
You should be able to run Water on 4. You will experience graphics issues, though with nVidia, like texture flickering and problems with the water, depending on driver version and chipset used. You CAN try to set Effects=2, too, but I wouldn't recommend it. Smoke and clouds will look a lot more 3D, but it has a large effect on performance, especially when bombing or shooting your 110s guns at groundtargets