I just updated to 10.3.6, rather I got half-way through the update when I was prompted I had to manually restart my computer by holding the power button down. I restarted and came to find no icons, no finder, no ability to launch finder, and more importnatly no access to Disk Utility. I open Disk Utility and it mysterously shuts itself off before truly opening. I also tried to re-download the update but it will not successfully install, it gets hung up on the "Read Me" sections. Any ideas?