JAVA 1.6.0.23 doesn't work properly with browsers, so I always select "run without system scan". I am using JAVA 1.6.0.23 for new browsers and other browsers that require latest JAVA, but several old browsers got higher scores with JAVA 1.5.0.22. Browsers using Gecko 1.8.1.x got low scores on my system, but they are faster than Opera 10.10 and Firefox 3 in practical use. Opteron 154 is faster than Pentium 4, so we got different scores on IE6 and Opera. Besides, different VGA and motherboard chipsets may affect scores.