So does this one fix the spinning beachball on sse2 cpus?

ie:

The Disk Utility will keep freezing (and also the Checking Available disks in the installer, or stuck at 0%-x% during install) in the SL installer because of lack of sse3. It seems the sse3 emulation is missing something/loop/hangs when a certain instruction is used.

My only way to install it was from other Leopard system.. but then after boot it gives the 100% cpu, md5/quickloop worker stuck, safari crash, xcode freezes.. system not usable..

If xcode did work I could disable the spotlight stuff, forgo safari with firefox/chrome... but I need xcode