The first time I tried the installation, using the standalone downloadable installer, it went all the way through to step 2. Then crashed upon reboot with a blue screen of death (BSOD), was unable to repair the startup problem, but was finally able to do a system restore. My two conversations with Toshiba Technical Support were of no help in identifying the problem I experienced, other than that in the mean time I figured it out on my own. Or, I should say, at least figured out one part of the equasion, namely that the display driver on this machine is not Windows Vista SP1 compatible. The Intel 965 Express driver on the Toshiba Satellite U305-S2804 is v 126.96.36.1999. This versions fits right into the beginning of the range 188.8.131.522 and 184.108.40.2063 that is incompatible according to Microsoft (http://support.microsoft.com/?kbid=948343). But, there has to be a newer driver out, right? Using the “Update driver” feature within the device driver window, Vista kindly alerts me that my driver is up to date. Of course this is not surprising me when in the mean time I already looked up that Intel has released several newer versions and is currently at v 220.127.116.117 (http://www.intel.com/support/graphics/intelgm965/#anchor1) A quick download later, the Intel driver installation alerts me that this driver is not certified for my machine and that I should download the latest version from the manufacturer. Mmmm. Back at Toshiba there is nary a download for the U305. Through a chipset search I find that the latest driver predates my machine’s purchase and matches v 18.104.22.1689. So, no SP1 love right now for this Toshiba notebook. And, of course I have to be the first and only one at this point in time who can’t install SP1 on this particular machine. What are the odds? Update: Toshiba is bumping me to level 3 tech support, advanced engineering since it is a driver/firmware issue and their department will be giving me a call back in the beginning of next week.