I downloaded Mac OS X 10.5.7 from the Apple website rather than using Software Update only to save time. I used Software Update to get 10.5.7 on my MacBook Pro and it took 35 minutes to download the package. Using the Apple website for my iMac, the download took about 15 minutes. I then began the installation of 10.5.7 on the iMac. Everything went fine until it was time to restart. The computer froze on restart. I had to hold down the power button to turn off the iMac. Then I started it up and it began to load for quite a while (normal after an update). Then I logged in and went to "About This Mac" and it read that I had Mac OS X 10.5.7. Obviously, this is an unorthodox way of updating. But am I safe with this method? Was it just a minor glitch?