Hello, I have a 2.5Ghz Intel core 2 quad, bus clock 333Mhz, 4Gb DDR3 RAM, 1Tb hard drive and....the Geforce GT320. In Second Life, viewer 1, graphics are slow to rez (OK once rezzed). I have tried to download viewer 2, but get a warning from Linden Labs that my PC doesn't meet the minimum spec for V2. I think the GT320 is responsible for this, and am considering upgrading to the GTGeforce GTX550Ti/560. Any advice very gratefully received. Many thanks and kind regards.