I switched from removewat to Daz loader 1.9.6 yesterday. I upgraded my windows 7 ultimate (Toshiba Satellite C655-S5061) to windows 7 ultimate sp1 today. I used Daz loader again after sp1 installation to prevent activation problems. Windows compatibility report presented me to upgrade Toshiba Firmware Linkage Driver before installing SP1 which I ignored. I went to manufacturer's site to upgrade firmware driver to new version after the SP1 upgrade but I could not find any such driver on the site. My Windows experience index before upgrade was 4.6; now it is 4.5 (I ran the test multiple times). What could be the possible reason for the decrease? Will this effect my system performance in any way? Thanks.