I have posted this on multiple websites, so sorry if this is a repeat for you. I just downloaded 10.5.2 and a recent Quicktime update. As my Mac Pro was shutting down, it began to install the software. When it got to "Writing Package Receipt", it froze, and stayed on that screen for about 20 minutes. After 20 minutes of nothing, I decided to force shutdown the machine. Upon restart, everything seems to be working OK - under About this Mac it says 10.5.2, and Quicktime says it is running the latest version. When I run Software Update, it says that Leopard Graphics Update 1.0 is available. So, 1. How can I make sure everything is really OK with my machine? and 2. I assume I should proceed with the Graphics Update, right?